Seth Hubbard

Demonstration of a Monolithically Integrated Hybrid Device for Simultaneous Power Generation and Data Modulation. E Kessler-Lewis, SJ Polly, E Sacchitella, SM Hubbard, R Hoheisel IEEE Journal of Photovoltaics, 2024.

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Improving 3-Junction and 2-Junction solar cell efficiency by down-converting solar UV light to visible. A Fedoseyev, S Herasimenka, S Sarkisov, B Bogner, S Polly, S Hubbard Journal of Physics: Conference Series 2675 (1), 012013, 2023.

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Simultaneous Solar Power Generation and Bidirectional Data Transmission. E Kessler-Lewis, SJ Polly, E Sacchitella, SM Hubbard, R Hoheisel 2023 IEEE 50th Photovoltaic Specialists Conference (PVSC), 1-1, 2023.

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AM0 Optimized Dual Junction Quantum Well Solar Cells-Investigation of Radiation Tolerance Designs and Voc Retention at EOL. BM Bogner, SJ Polly, SM Hubbard, M Imaizumi, RE Welser 2023 IEEE 50th Photovoltaic Specialists Conference (PVSC), 1-3, 2023.

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Radioisotope Thermoradiative Cell Power Generator. SJ Polly, GA Landis, SM Hubbard 2023 IEEE 50th Photovoltaic Specialists Conference (PVSC), 1-1, 2023.

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Epitaxial Growth and Testing of 1.1 eV Metamorphic InGaAs/GaAs Laser Power Converters. KE Fleming, SJ Polly, SM Hubbard 2023 IEEE 50th Photovoltaic Specialists Conference (PVSC), 1-1, 2023.

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High figure of merit spin polarized electron sources grown via MOCVD. B Belfore, A Masters, D Poudel, G Blume, S Polly, E Wang, SM Hubbard, ... Applied Physics Letters 123 (22), 2023.

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Sonic lift-off of single-junction GaAs devices: a path to $0.5/W through substrate reusability (Conference Presentation). PG Coll, A Sindermann, SJ Polly, A Merkle, SM Hubbard, MI Bertoni Physics, Simulation, and Photonic Engineering of Photovoltaic Devices XII ..., 2023.

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Improving InGaP/GaAs dual junction photovoltaic efficiency with high quality InGaAs quantum wells (Conference Presentation). SJ Polly, B Bogner, A Fedorenko, S Chowdhury, D Biswas, SM Hubbard Physics, Simulation, and Photonic Engineering of Photovoltaic Devices XII ..., 2023.

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Optical and electronic transport properties of epitaxial InGaAs and InAlAs in multilayer stacks. MK Mainali, I Subedi, DV Forbes, SM Hubbard, NJ Podraza Journal of Materials Science 58 (23), 9533-9546, 2023.

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Growth optimization of quantum-well-enhanced multijunction photovoltaics. S Polly, B Bogner, A Fedorenko, N Pokharel, P Ahrenkiel, S Chowdhury, ... Cell Reports Physical Science 4 (6), 2023.

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Development of MOVPE grown GaSb-on-GaAs interfacial misfit solar cells. ES Kessler-Lewis, SJ Polly, GT Nelson, MA Slocum, N Pokharel, ... Journal of Applied Physics 133 (24), 2023.

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Light management for improved photon absorption in thin-film radiation-tolerant multijunction space photovoltaics. JR D'Rozario, SJ Polly, R Tatavarti, SM Hubbard Physics, Simulation, and Photonic Engineering of Photovoltaic Devices XI ..., 2022.

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Modeling free-carrier absorption in ultrathin III-V solar cells with light management. JR D'Rozario, SJ Polly, GT Nelson, D Wilt, SM Hubbard Optics Express 30 (5), 7096-7109, 2022.

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Significant improvement of conversion efficiency by passivation of low-angle grain boundaries in flexible low-cost single-crystal-like GaAs thin-film solar cells directly .... S Pouladi, C Favela, W Wang, M Moradnia, NI Kim, S Shervin, J Chen, ... Solar Energy Materials and Solar Cells 243, 111791, 2022.

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Finite difference time domain simulations of absorption enhancement in thin GaAs solar cells with textured back surface reflectors. GT Nelson, JR D'Rozario, SM Hubbard Solar Energy Materials and Solar Cells 242, 111757, 2022.

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Toward Hot Carrier Extraction in Intervalley Photovoltaic Devices. KR Dorman, VR Whiteside, DK Ferry, IG Yusuf, TJ Legvold, TD Mishima, ... ACS Applied Energy Materials 5 (9), 11159-11166, 2022.

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Thin-Film Multijunction Inverted Metamorphic Solar Cells with Light Management for Space Applications. J D'Rozario, S Polly, R Tatavarti, S Hubbard 2022 IEEE 49th Photovoltaics Specialists Conference (PVSC), 913-913, 2022.

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Progress on Substrate Reuse Using Sonic Lift-Off for GaAs-Based Photovoltaics. AB Sindermann, SJ Polly, PG Coll, EJ Sacchitella, BM Bogner, MI Bertoni, ... 2022 IEEE 49th Photovoltaics Specialists Conference (PVSC), 1314-1314, 2022.

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Demonstration of a Monolithically Integrated Hybrid Electroabsorptive Modulator/Photovoltaic Device for Bidirectional Free Space Optical Communication at 1.55 m. E Kessler-Lewis, SJ Polly, E Sacchitella, SM Hubbard, R Hoheisel 2022 IEEE 49th Photovoltaics Specialists Conference (PVSC), 0624-0624, 2022.

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26.7% AM0, 30.2% AM1. 5G dual junction solar cell with 50x InGaAs quantum wells, GaAsP strain compensation, and distributed Bragg reflector. SJ Polly, B Bogner, A Fedorenko, S Chowdhury, D Biswas, SM Hubbard 2022 IEEE 49th Photovoltaics Specialists Conference (PVSC), 0991-0991, 2022.

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Zinc-Acetate-Amine Complexes as Precursors to ZnO and the Effect of the Amine on Nanoparticle Morphology, Size, and Photocatalytic Activity. JD Harris, EA Wade, EG Ellison, CC Pena, SC Bryant, NL McKibben, ... Catalysts 12 (10), 1099, 2022.

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Growth optimization of InGaP/GaAS dual junction solar cells with quantum wells and a distributed Bragg reflector. S Polly, B Bogner, A Fedorenko, N Pokharel, P Ahrenkiel, S Chowdhury, ... GaAs Dual Junction Solar Cells With Quantum Wells and a Distributed Bragg ..., 2022.

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Electron radiation effects on carrier relaxation in molecular beam and vapor deposition grown GaAs test structures. A Hudson, S Hubbard, BC Juang, B Liang, M Debnath, W Lotshaw Journal of Applied Physics 131 (7), 2022.

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Localized self-assembly of InAs nanowire arrays on reusable Si substrates for substrate-free optoelectronics. A Abrand, MA Baboli, A Fedorenko, SJ Polly, E Manfreda-Schulz, ... ACS Applied Nano Materials 5 (1), 840-851, 2022.

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Impact of Well Number on High-Efficiency Strain-Balanced Quantum-Well Solar Cells. RE Welser, SJ Polly, BM Bogner, SM Hubbard IEEE Journal of Photovoltaics 13 (1), 61-69, 2022.

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Thin, radiation-resilient III-V PV devices utilizing quantum structures and epitaxial light reflectors. BM Bogner, SJ Polly, SM Hubbard, RE Welser 2022 IEEE 49th Photovoltaics Specialists Conference (PVSC), 1167-1167, 2022.

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Longpass Distributed Bragg Reflector (LPDBR). S Polly, J D'rozario, G Nelson, S Hubbard US Patent App. 17/807,549, 2022.

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Advancements in light management for thin-film space photovoltaics. JR D'Rozario, SJ Polly, R Tatavarti, SM Hubbard 2021 IEEE 48th Photovoltaic Specialists Conference (PVSC), 1266-1269, 2021.

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Mixed-dimensional InAs nanowire on layered molybdenum disulfide heterostructures via selective-area van der Waals epitaxy. MA Baboli, A Abrand, RA Burke, A Fedorenko, TS Wilhelm, SJ Polly, ... Nanoscale Advances 3 (10), 2802-2811, 2021.

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Design of a hybrid electroabsorptive modulator/photovoltaic device for free space optical communication at 1.55 m. E Kessler-Lewis, SJ Polly, SM Hubbard, R Hoheisel Nanoengineering: Fabrication, Properties, Optics, Thin Films, and Devices ..., 2021.

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The Role of Valley Degeneracy in Carrier Extraction in Valley Photovoltaic Solar Cells. KR Dorman, VR Whiteside, DK Ferry, IG Yusuf, TJ Legvold, TD Mishima, ... 2021 IEEE 48th Photovoltaic Specialists Conference (PVSC), 0583-0585, 2021.

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Enhancing Open-Circuit Voltage and Efficiency of Shallow InxGa1-xAs Quantum Well GaAs Solar Cells. A Fedorenko, S Polly, B Bogner, SM Hubbard 2021 IEEE 48th Photovoltaic Specialists Conference (PVSC), 1524-1526, 2021.

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Experimental Performance of Longpass DBR in 3J IMM with Quantum Wells. SJ Polly, JR D'Rozario, A Wibowo, D Rowell, GT Nelson, R Tatavarti, ... 2021 IEEE 48th Photovoltaic Specialists Conference (PVSC), 1603-1605, 2021.

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Improved photon absorption in thin-film solar cells for integration into radiation tolerant multijunction photovoltaics. SM Hubbard, J D'Rozario, S Polly, SR Tatavarti Physics, Simulation, and Photonic Engineering of Photovoltaic Devices X ..., 2021.

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Sonic lift-off of GaAs-based solar cells with reduced surface facets. PG Coll, A Neumann, D Smith, E Warren, S Polly, S Hubbard, MA Steiner, ... 2021 IEEE 48th Photovoltaic Specialists Conference (PVSC), 2141-2143, 2021.

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SSTP 2016 Partnership Development of a Nano-Enabled Space Power System. R Raffaelle, S Hubbard, S Polly, B Landi, GA Landis, M Ganter, ... 2021 SmallSat Technology Partnerships Technology Exposition, 2021.

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High efficiency single junction p i n GaAs solar cell on roll to roll epi ready flexible metal foils for low cost photovoltaics. D Khatiwada, CA Favela, S Sun, C Zhang, S Sharma, M Rathi, P Dutta, ... Progress in Photovoltaics: Research and Applications 28 (11), 1107-1119, 2020.

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Thin gallium arsenide solar cells with maskless back surface reflectors. JR D'Rozario, SJ Polly, GT Nelson, SM Hubbard IEEE Journal of Photovoltaics 10 (6), 1681-1688, 2020.

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Directly Linking Low-Angle Grain Boundary Misorientation to Device Functionality for GaAs Grown on Flexible Metal Substrates. JD Poplawsky, P Dutta, H Guthrey, D Leonard, W Guo, M Kacharia, ... ACS applied materials & interfaces 12 (9), 10664-10672, 2020.

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In Situ Deep-Level Transient Spectroscopy and Dark Current Measurements of Proton-Irradiated InGaAs Photodiodes. GT Nelson, G Ouin, SJ Polly, KB Wynne, AW Haberl, WA Lanford, ... IEEE Transactions on Nuclear Science 67 (9), 2051-2061, 2020.

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Radiation hardening of dual junction solar cells. R Tatavarti, K Forghani, R Reddy, JR D'Rozario, GT Nelson, S Hubbard 2020 47th IEEE Photovoltaic Specialists Conference (PVSC), 2258-2261, 2020.

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DataCell-A solar cell integrated modulating retroreflector. R Hoheisel, E Kessler-Lewis, S Polly, S Hubbard 2020 47th IEEE Photovoltaic Specialists Conference (PVSC), 0979-0980, 2020.

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Back Surface Reflectors for Thin III-V Multi-junction Space Photovoltaics. JR D'Rozario, SJ Polly, GT Nelson, PK Mohseni, DM Wilt, R Tatavarti, ... 2020 47th IEEE Photovoltaic Specialists Conference (PVSC), 1686-1688, 2020.

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Multi-Terminal Dual-Junction GaAs0. 73P0. 27/In0. 22Ga0. 78As Nanowire Solar Cell: An Integrated Approach to Simulation. A Fedorenko, A Abrand, P Mohseni, S Hubbard 2020 47th IEEE Photovoltaic Specialists Conference (PVSC), 1472-1475, 2020.

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Quantum well solar cells incorporating thin barriers for improved efficiency (Conference Presentation). SJ Polly, RE Welser, M Kacharia, A Fedorenko, AK Sood, SM Hubbard Physics, Simulation, and Photonic Engineering of Photovoltaic Devices IX ..., 2020.

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Longpass distributed Bragg reflector for improved radiation tolerance and current matching in multijunction solar cells. SJ Polly, JR D'Rozario, GT Nelson, R Tatavarti, SM Hubbard 2020 47th IEEE Photovoltaic Specialists Conference (PVSC), 1537-1539, 2020.

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The effects of silicon substrate thickness and annealing temperature on surface coverage for aluminum-induced crystallization of germanium films. EL McClure, SM Hubbard Materials Science in Semiconductor Processing 94, 22-27, 2019.

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Improved photoabsorption in thin gallium arsenide solar cells using light trapping techniques. JR D'Rozario, G Nelson, SJ Polly, SM Hubbard 2019 IEEE 46th Photovoltaic Specialists Conference (PVSC), 2603-2607, 2019.

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Orientations of Al4C3 and Al films grown on GaAs substrates. N Pokharel, N Smaglik, P Ahrenkiel, A Giussani, MA Slocum, SM Hubbard Materials Science in Semiconductor Processing 98, 49-54, 2019.

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Gallium Arsenide Solar Cells Grown on Polycrystalline Germanium Substrates by Aluminum-Induced Crystallization. EL McClure, JR D'Rozario, SJ Polly, SM Hubbard 2019 IEEE 46th Photovoltaic Specialists Conference (PVSC), 1029-1033, 2019.

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Towards High-Efficiency Triple-Junction Bifacial III-V Nanowire-on-Silicon Solar Cells: Design Approaches Enabling the Concept. A Fedorenko, MA Baboli, PK Mohseni, SM Hubbard 2019 IEEE 46th Photovoltaic Specialists Conference (PVSC), 3191-3194, 2019.

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Thin-Barrier Strained Quantum Well Superlattice Solar Cells. SM Hubbard, M Kacharia, A Fedorenko, SJ Polly, R Welser, AK Sood 2019 IEEE 46th Photovoltaic Specialists Conference (PVSC), 0756-0759, 2019.

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GaSb Solar Cells Grown by MOCVD via IMF on GaAs. SJ Polly, ES Kessler-Lewis, GT Nelson, SM Hubbard 2019 IEEE 46th Photovoltaic Specialists Conference (PVSC), 2307-2309, 2019.

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Investigation of Radiative Coupling from InGaAsP Quantum Wells for Improving End-of-Life (EOL) Efficiency in Multijunction Solar Cells. GK Bradshaw, M Kacharia, E Kessler-Lewis, D Wilt, SJ Polly, CJ Mann, ... 2019 IEEE 46th Photovoltaic Specialists Conference (PVSC), 2385-2389, 2019.

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Improving pseudo-van der Waals epitaxy of self-assembled InAs nanowires on graphene via MOCVD parameter space mapping. MA Baboli, MA Slocum, H Kum, TS Wilhelm, SJ Polly, SM Hubbard, ... CrystEngComm 21 (4), 602-615, 2019.

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Design and simulation of the bifacial III-V-nanowire-on-Si solar cell. A Fedorenko, MA Baboli, PK Mohseni, SM Hubbard MRS Advances 4, 929-936, 2019.

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Design and demonstration of high-efficiency quantum well solar cells employing thin strained superlattices. RE Welser, SJ Polly, M Kacharia, A Fedorenko, AK Sood, SM Hubbard Scientific Reports 9 (1), 13955, 2019.

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Radiation effects in thinned gaas photovoltaics incorporating dbrs for improved radiation tolerance of multijunctions. SJ Polly, GT Nelson, JR D'Rozario, R Tatavarti, SM Hubbard 2019 IEEE 46th Photovoltaic Specialists Conference (PVSC), 2818-2821, 2019.

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Epitaxial reflector structures for high efficiency quantum well solar cells. RE Welser, SJ Polly, AK Sood, SM Hubbard, KH Montgomery 2019 IEEE 46th Photovoltaic Specialists Conference (PVSC), 2642-2645, 2019.

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Flexible GaAs solar cells on roll-to-roll processed epitaxial Ge films on metal foils: A route towards low-cost and high-performance III-V photovoltaics. P Dutta, M Rathi, D Khatiwada, S Sun, Y Yao, B Yu, S Reed, M Kacharia, ... Energy & Environmental Science 12 (2), 756-766, 2019.

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Modeling of practical light management for absorption enhancement in III-V multi-junction and quantum-dot solar cells. GT Nelson, J D'Rozario, SJ Polly, R Tatavartiy, SM Hubbard 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion (WCPEC)(A ..., 2018.

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Incorporation of photonic structures for improved radiation tolerance of lattice matched triple junction solar cells. SJ Polly, G Nelson, J D'Rozario, E McClure, R Tatavarti, SM Hubbard 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion (WCPEC)(A ..., 2018.

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Characterization of nonradiative recombination centers in proton-irradiated InAs/GaAs quantum dots by two-wavelength-excited photoluminescence. MD Haque, N Kamata, S Sato, SM Hubbard Japanese Journal of Applied Physics 57 (9), 092302, 2018.

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Self-Assembled InAsP and lnAlAs Nanowires on Graphene Via Pseudo-Van Der Waals Epitaxy. MA Baboli, MA Slocum, A Giussani, SM Hubbard, PK Mohseni 2018 IEEE 18th International Conference on Nanotechnology (IEEE-NANO), 1-5, 2018.

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Development of a nano-enabled space power system. SJ Polly, M Dann, A Fedorenko, S Hubbard, B Landi, C Schauerman, ... 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion (WCPEC)(A ..., 2018.

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Experimental analysis of open-circuit voltage drop in quantum-dot solar cells via absolute electroluminescence measurement. L Zhu, Y Hazama, C Kim, M Slocum, Z Bittner, S Hubbard, H Akiyama 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion (WCPEC)(A ..., 2018.

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Growth of GaAs on Polycrystalline Germanium Substrates Prepared via Aluminum-Induced Crystallization. EL McClure, SJ Polly, A Chikhalkar, RR King, SM Hubbard 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion (WCPEC)(A ..., 2018.

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Electron and proton radiation effects on band structure and carrier dynamics in MBE and MOCVD grown III-V test structures. AI Hudson, AC Scofield, WT Lotshaw, SM Hubbard, MA Slocum, BL Liang, ... 2018 18th European Conference on Radiation and Its Effects on Components and ..., 2018.

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Application of InP quantum dots toward high-temperature intermediate-band solar-cell operation (Conference Presentation). SM Hubbard, H Kum, Y Dai, Z Bittner Physics, Simulation, and Photonic Engineering of Photovoltaic Devices VII ..., 2018.

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Life Cycle Assessment of III-V Precursors for Photovoltaic and Semiconductor Applications. BL Smith, CW Babbitt, K Horowitz, G Gaustad, SM Hubbard MRS Advances 3 (25), 1399-1404, 2018.

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Epitaxial Lift-off (ELO) of InGaP/GaAs/InGaAs solar cells with quantum dots in GaAs middle sub-cell. SR Tatavarti, ZS Bittner, A Wibowo, MA Slocum, G Nelson, H Kum, ... Solar Energy Materials and Solar Cells 185, 153-157, 2018.

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Two-step photon absorption in InP/InGaP quantum dot solar cells. H Kum, Y Dai, T Aihara, MA Slocum, T Tayagaki, A Fedorenko, SJ Polly, ... Applied Physics Letters 113 (4), 2018.

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Effect of annealing on the compositional modulation of InAlAsSb. N Balade s, DL Sales, M Herrera, FJ Delgado, M Gonza lez, K Clark, ... Applied Surface Science 395, 105-109, 2017.

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Development of back surface texture for light management in epitaxial lift off (ELO) quantum dot solar cells. BL Smith, GT Nelson, Y Dai, MA Slocum, A Wibowo, R Tatavarti, ... 2017 IEEE 44th Photovoltaic Specialist Conference (PVSC), 1184-1188, 2017.

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Electrical transport properties from long wavelength ellipsometry. P Uprety, MM Junda, I Subedi, MA Slocum, DV Forbes, SM Hubbard, ... 2017 IEEE 44th Photovoltaic Specialist Conference (PVSC), 3468-3472, 2017.

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Integration of thin Al films on In0.18Ga0.82As metamorphic grade structures for low-cost III- V photovoltaics. A Giussani, MA Slocum, SM Hubbard, N Smaglik, N Pokharel, ... 2017 IEEE 44th Photovoltaic Specialist Conference (PVSC), 2514-2519, 2017.

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InAlAs photovoltaic cell design for high device efficiency. BL Smith, ZS Bittner, SD Hellstroem, GT Nelson, MA Slocum, AG Norman, ... Progress in Photovoltaics: Research and Applications 25 (8), 706-713, 2017.

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Development of Aluminum Epilayers as Buffers for GaInAs. P Ahrenkiel, N Smaglik, N Pokharel, A Giussani, MA Slocum, SM Hubbard 2017 IEEE 44th Photovoltaic Specialist Conference (PVSC), 831-836, 2017.

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High efficiency single-junction InGaP photovoltaic devices under low intensity light illumination. Y Dai, H Kum, MA Slocum, GT Nelson, SM Hubbard 2017 IEEE 44th Photovoltaic Specialist Conference (PVSC), 222-225, 2017.

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Development of GaSb solar cells on GaAs by MOVPE via interface misfit technique. MA Slocum, A Giussani, E Kessler, P Ahrenkiel, GT Nelson, SM Hubbard 2017 IEEE 44th Photovoltaic Specialist Conference (PVSC), 206-209, 2017.

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Cover Image, Volume 25, Issue 8. BL Smith, ZS Bittner, SD Hellstroem, GT Nelson, MA Slocum, AG Norman, ... Progress in Photovoltaics 25 (8), 2017.

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Temperature and voltage-bias dependent two-step photon absorption in InAs/GaAsl Al0.3GaAs quantum dot in a well solar cells. Y Dai, BL Smith, MA Slocum, ZS Bittner, H Kum, J D'Rozario, SM Hubbard 2017 IEEE 44th Photovoltaic Specialist Conference (PVSC), 18-22, 2017.

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Crystallinity Control in Low-Temperature Growth of Poly-Crystalline Ge by Ion Beam Deposition. SI Maximenko, NA Mahadik, PP Jenkins, RJ Walters, A Giussani, ... 2017 IEEE 44th Photovoltaic Specialist Conference (PVSC), 845-848, 2017.

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InP Quantum Dot Intermediate Band Solar Cell Grown via MOCVD. H Kum, Y Dai, M Slocum, Z Bittner, S Hubbard 2017 IEEE 44th Photovoltaic Specialist Conference (PVSC), 677-680, 2017.

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Comparative Study on Nonradiative Recombination Centers in Proton Irradiated InAs/GaAs Quantum Dot Structure by Two Wavelength Excited Photoluminescence. MD Haque, N Kamata, SI Sato, SM Hubbard 2017 IEEE 44th Photovoltaic Specialist Conference (PVSC), 552-557, 2017.

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Integration of Quantum Dots and Quantum Wells into InGaAs Metamorphic Subcell for Radiation Hard 3-J ELO IMM Photovoltaics. ZS Bittner, H Kum, MA Slocum, GT Nelson, R Tatavarti, A Wibowo, ... 2017 IEEE 44th Photovoltaic Specialist Conference (PVSC), 2084-2086, 2017.

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Virtual Substrates for Low-Cost High Efficiency III-V Photovoltaics. SJ Babcock, ML Lichty, S Karki, G Rajan, S Marsillac, EL McClure, ... 2017 IEEE 44th Photovoltaic Specialist Conference (PVSC), 2298-2300, 2017.

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Simulation and Spectroscopy of Carrier Relaxation in GaSb and GaAs. AC Scofield, AI Hudson, BL Liang, BC Juang, DL Huffaker, SM Hubbard, ... 2017 IEEE 44th Photovoltaic Specialist Conference (PVSC), 2755-2758, 2017.

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GaSb on GaAs solar cells Grown using interfacial misfit arrays (Conference Presentation). GT Nelson, BC Juang, MA Slocum, ZS Bittner, RBB Laghumavarapu, ... Physics, Simulation, and Photonic Engineering of Photovoltaic Devices VI ..., 2017.

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Advanced Power Technology Development Activities for Small Satellite Applications. M Piszczor, G Landis, T Miller, L Taylor, D Hernandez-Lugo, R Raffaelle, ... .

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GaSb solar cells grown on GaAs via interfacial misfit arrays for use in the III-Sb multi-junction cell. GT Nelson, BC Juang, MA Slocum, ZS Bittner, RB Laghumavarapu, ... Applied Physics Letters 111 (23), 2017.

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Effect of electric field on carrier escape mechanisms in quantum dot intermediate band solar cells. Y Dai, SJ Polly, S Hellstroem, MA Slocum, ZS Bittner, DV Forbes, ... Journal of Applied Physics 121 (1), 2017.

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Investigation and mitigation of shunts for higher efficiency epitaxial GaSb/GaSb and GaSb/GaAs solar cells. GT Nelson, BC Juang, S Johnston, MA Slocum, ZS Bittner, ... 2017 IEEE 44th Photovoltaic Specialist Conference (PVSC), 202-205, 2017.

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Optical properties of InP from infrared to vacuum ultraviolet studied by spectroscopic ellipsometry. I Subedi, MA Slocum, DV Forbes, SM Hubbard, NJ Podraza Applied Surface Science 421, 813-818, 2017.

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Development of InAlAsSb growth by MOVPE. M Slocum, DV Forbes, GC Hillier, BL Smith, JGJ Adams, SM Hubbard Journal of Crystal Growth 471, 15-20, 2017.

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In-situ stress analysis for aluminum-induced crystallization of germanium as a function of anneal ramp time. EL McClure, MA Slocum, RK Hailstone, PT Furrey, ZS Bittner, ... 2016 IEEE 43rd Photovoltaic Specialists Conference (PVSC), 1960-1963, 2016.

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Absorption and Generation. S Hubbard Photovoltaic Solar Energy: From Fundamentals to Applications, 32-38, 2016.

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Comparison of InAs/GaAs and InGaAs/GaAs quantum dot solar cells and effect of post-growth annealing on their optical properties. D Panda, A Balgarkashi, S Sardar, SK Pal, S Hubbard, S Chakrabarti 2016 IEEE 43rd Photovoltaic Specialists Conference (PVSC), 2105-2107, 2016.

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GaSb on GaAs interfacial misfit solar cells. GT Nelson, BC Juang, M Slocum, Z Bittner, RB Lagumavarapu, ... 2016 IEEE 43rd Photovoltaic Specialists Conference (PVSC), 2349-2353, 2016.

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Carrier transport. S Hubbard Photovoltaic Solar Energy: From Fundamentals to Applications, 47-53, 2016.

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Growth of InAs quantum dots in a metamorphic InGaAs bottom cell of an inverse metamorphic solar cell. MA Slocum, G Nelson, S Hellstro m, B Smith, A Wibowo, R Tatavarti, ... 2016 IEEE 43rd Photovoltaic Specialists Conference (PVSC), 2111-2114, 2016.

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Novel InAs/GaAs QD subcell design for radiation hard 3-J ELO IMM solar cell. ZS Bittner, MA Slocum, GT Nelson, R Tatavarti, SM Hubbard 2016 IEEE 43rd Photovoltaic Specialists Conference (PVSC), 3421-3424, 2016.

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PN Junctions and the Diode Equation. S Hubbard Photovoltaic Solar Energy: From Fundamentals to Applications, 54-66, 2016.

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Low temperature growth of Germanium buffer films by ion beam sputter process. SI Maximenko, N Mahadik, DA Scheiman, NA Kotulak, MA Slocum, ... 2016 IEEE 43rd Photovoltaic Specialists Conference (PVSC), 1919-1922, 2016.

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Direct MOCVD epitaxial growth of III-V alloys on Mo for low cost PV applications. ML Lichty, SJ Babcock, T Ashrafee, G Rajan, S Marsillac, SM Hubbard, ... 2016 IEEE 43rd Photovoltaic Specialists Conference (PVSC), 1909-1913, 2016.

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Phosphorization-synthesized virtual substrates for low-cost high efficiency III-V photovoltaics. SJ Babcock, ML Lichty, S Karki, G Rajan, T Ashrafee, S Marsillac, ... 2016 IEEE 43rd Photovoltaic Specialists Conference (PVSC), 1887-1891, 2016.

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Inverted growth evaluation for epitaxial lift off (ELO) quantum dot solar cell and enhanced absorption by back surface texturing. BL Smith, MA Slocum, ZS Bittner, Y Dai, GT Nelson, SD Hellstroem, ... 2016 IEEE 43rd Photovoltaic Specialists Conference (PVSC), 1276-1281, 2016.

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Defect characterization of proton irradiated GaAs pn-junction diodes with layers of InAs quantum dots. S Sato, KJ Schmieder, SM Hubbard, DV Forbes, JH Warner, T Ohshima, ... Journal of Applied Physics 119 (18), 2016.

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Effect of doping on room temperature carrier escape mechanisms in InAs/GaAs quantum dot pin junction photovoltaic cells. DG Sellers, EY Chen, SJ Polly, SM Hubbard, MF Doty Journal of Applied Physics 119 (19), 2016.

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Optimization in wide-band-gap quantum dot solar cells. Y Dai, MA Slocum, Z Bittner, S Hellstroem, DV Forbes, SM Hubbard 2016 IEEE 43rd Photovoltaic Specialists Conference (PVSC), 0151-0154, 2016.

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Towards the ultimate multi-junction solar cell using transfer printing. MP Lumb, M Meitl, KJ Schmieder, M Gonzalez, S Mack, MK Yakes, ... 2016 IEEE 43rd Photovoltaic Specialists Conference (PVSC), 0040-0045, 2016.

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Calculation of strain compensation thickness for III-V semiconductor quantum dot superlattices. SJ Polly, CG Bailey, AJ Grede, DV Forbes, SM Hubbard Journal of Crystal Growth 454, 64-70, 2016.

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Recombination. S Hubbard Photovoltaic Solar Energy: From Fundamentals to Applications, 39-46, 2016.

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Carrier collection in quantum dots solar cells with barrier modification. Y Dai, S Polly, S Hellstroem, DV Forbes, SM Hubbard 2015 IEEE 42nd Photovoltaic Specialist Conference (PVSC), 1-5, 2015.

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Intermediate band solar cell design using InAs quantum dots in AlAsSb cladding. SM Hubbard, S Hellstroem, ZS Bittner, RB Laghumavarapu, D Huffaker 2015 IEEE 42nd Photovoltaic Specialist Conference (PVSC), 1-4, 2015.

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Synthesis and characterization of [Zn (acetate) 2 (amine) x] compounds (x= 1 or 2) and their use as precursors to ZnO. JS Hyslop, AR Boydstun, TR Fereday, JR Rusch, JL Strunk, CT Wall, ... Materials science in semiconductor processing 38, 278-289, 2015.

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Development of III-Sb Quantum Dot Systems for High Efficiency Intermediate Band Solar Cells. D Huffaker, S Hubbard, A Norman Univ. of California, Los Angeles, CA (United States), 2015.

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InAlAs solar cells grown by alternative MOVPE precursors. BL Smith, ZS Bittner, SD Hellstroem, MA Slocum, GT Nelson, SM Hubbard, ... 2015 IEEE 42nd Photovoltaic Specialist Conference (PVSC), 1-5, 2015.

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Defects in GaAs solar cells with InAs quantum dots created by proton irradiation. S Sato, KJ Schmieder, SM Hubbard, DV Forbes, JH Warner, T Ohshima, ... 2015 IEEE 42nd Photovoltaic Specialist Conference (PVSC), 1-5, 2015.

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Investigation of state-filling and carrier collection of doped InAs QDs through direct absorption measurement. SJ Polly, MA Slocum, S Hellstro m, DV Forbes, SM Hubbard 2015 IEEE 42nd Photovoltaic Specialist Conference (PVSC), 1-3, 2015.

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Investigation of InAlGaAs/InGaAs quantum well solar cells. CG Bailey, DV Forbes, MP Lumb, R Hoheisel, M Gonzalez, SM Hubbard, ... 2015 IEEE 42nd Photovoltaic Specialist Conference (PVSC), 1-3, 2015.

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Modeling nipi solar cells under concentration accounting for state filling effects. MA Slocum, DV Forbes, SM Hubbard Physics, Simulation, and Photonic Engineering of Photovoltaic Devices IV ..., 2015.

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Carrier quenching in InGaP/GaAs double heterostructures. NP Wells, TU Driskell, AI Hudson, SD LaLumondiere, WT Lotshaw, ... Journal of Applied Physics 118 (6), 2015.

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Modeling the effects of using polycrystalline substrates for low cost III-V photovoltaics. EL McClure, ZS Bittner, MA Slocum, DV Forbes, SM Hubbard 2015 IEEE 42nd Photovoltaic Specialist Conference (PVSC), 1-5, 2015.

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Analysis of GaAs photovoltaic device losses at high MOCVD growth rates. KJ Schmieder, MP Lumb, MK Yakes, M Gonza lez, PD Cunningham, ... 2015 IEEE 42nd Photovoltaic Specialist Conference (PVSC), 1-3, 2015.

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Electric field effect on carrier escape from InAs/GaAs quantum dots solar cells. Y Dai, S Polly, S Hellstroem, DV Forbes, SM Hubbard 2014 IEEE 40th Photovoltaic Specialist Conference (PVSC), 3492-3497, 2014.

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Radiation effects on InAlGaAs/InGaAs quantum well solar cells. CG Bailey, R Hoheisel, M Gonzalez, DV Forbes, MP Lumb, SM Hubbard, ... 2014 IEEE 40th Photovoltaic Specialist Conference (PVSC), 2871-2874, 2014.

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The effect of barrier composition on quantum dot solar cell performance. DV Forbes, Y Dai, SJ Polly, S Hellstroem, C Bailey, SM Hubbard 2014 IEEE 40th Photovoltaic Specialist Conference (PVSC), 3488-3491, 2014.

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New nanostructured materials for efficient photon upconversion. DG Sellers, SJ Polly, Y Zhong, SM Hubbard, JMO Zide, MF Doty IEEE Journal of Photovoltaics 5 (1), 224-228, 2014.

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New quantum dot nanomaterials to boost solar energy harvesting. RB Laghumavarapu, M Sun, PJ Simmonds, B Liang, S Hellstroem, ... SPIE Newsroom 10 (2.1201401), 005315, 2014.

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Study of deep levels in InAlAsSb grown via organometallic vapor phase epitaxy. GT Nelson, ZS Bittner, B Smith, DV Forbes, SM Hubbard 2014 IEEE 40th Photovoltaic Specialist Conference (PVSC), 1168-1173, 2014.

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Impact of nanostructures and radiation environment on defect levels in III-V solar cells. SM Hubbard, S Sato, K Schmieder, W Strong, D Forbes, CG Bailey, ... 2014 IEEE 40th Photovoltaic Specialist Conference (PVSC), 1045-1050, 2014.

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Drift-diffusion simulations of InAs/AlAsSb quantum dot intermediate-band solar cells. S Hellstroem, SM Hubbard 2014 IEEE 40th Photovoltaic Specialist Conference (PVSC), 1037-1040, 2014.

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Experimental examination of an InAs/GaAs (Sb)/AlAsSb quantum dot approach to the intermediate band solar cell. ZS Bittner, RB Laghumavarapu, S Hellstroem, D Huffaker, B Liang, ... 2014 IEEE 40th Photovoltaic Specialist Conference (PVSC), 3626-3628, 2014.

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The effects of electric field on InGaAs quantum well i-region placement in InAlGaAs solar cells. CG Bailey, MP Lumb, R Hoheisel, M Gonzalez, DV Forbes, MK Yakes, ... Physics, Simulation, and Photonic Engineering of Photovoltaic Devices III ..., 2014.

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Improving epitaxial regrowth interfaces as a means of improving doping superlattice solar cell performance. MA Slocum, DV Forbes, AJ Grede, NM Hoven, SM Hubbard 2014 IEEE 40th Photovoltaic Specialist Conference (PVSC), 0102-0106, 2014.

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Detailed physics based modeling of triple-junction InGaP/GaAs/Ge solar cell. A Fedoseyev, T Bald, A Raman, S Hubbard, D Forbes, A Freundlich Physics, Simulation, and Photonic Engineering of Photovoltaic Devices III ..., 2014.

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Analysis of GaAs solar cells at High MOCVD growth rates. KJ Schmieder, MK Yakes, CG Bailey, Z Pulwin, MP Lumb, LC Hirst, ... 2014 IEEE 40th Photovoltaic Specialist Conference (PVSC), 2130-2133, 2014.

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Fabrication and analysis of multijunction solar cells with a quantum dot (In) GaAs junction. C Kerestes, S Polly, D Forbes, C Bailey, A Podell, J Spann, P Patel, ... Progress in Photovoltaics: Research and Applications 22 (11), 1172-1179, 2014.

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Thermal survivability characterization of quantum dot multi-junction photovoltaic cells. P Ericksen, A Howard, D Wilt, S Hubbard, B Richards 2014 IEEE 40th Photovoltaic Specialist Conference (PVSC), 2878-2881, 2014.

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Effects of doping on carrier confinement in InAs QD solar cells. SJ Polly, S Hellstro m, DV Forbes, SM Hubbard 2014 IEEE 40th Photovoltaic Specialist Conference (PVSC), 1089-1091, 2014.

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Enhancement of radiation tolerance with the use of a doping superlattice solar cell. MA Slocum, DV Forbes, SM Hubbard Physics, Simulation, and Photonic Engineering of Photovoltaic Devices III ..., 2014.

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OMVPE of InAlAs Using Alternative Al and As Precursors. BL Smith, NM Hoven, G Hillier, SM Hubbard, DV Forbes MRS Online Proceedings Library (OPL) 1635, 63-68, 2014.

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Analyzing carrier escape mechanisms in InAs/GaAs quantum dot pin junction photovoltaic cells. DG Sellers, S Polly, SM Hubbard, MF Doty Applied Physics Letters 104 (22), 2014.

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Effect of quantum dot position and background doping on the performance of quantum dot enhanced GaAs solar cells. K Driscoll, MF Bennett, SJ Polly, DV Forbes, SM Hubbard Applied Physics Letters 104 (2), 2014.

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Investigation of deep level defects in electron irradiated indium arsenide quantum dots embedded in a gallium arsenide matrix. WH Strong, DV Forbes, SM Hubbard Materials science in semiconductor processing 25, 76-83, 2014.

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Investigation of optical transitions in InAs/GaAs (Sb)/AlAsSb quantum dots using modulation spectroscopy. ZS Bittner, S Hellstroem, SJ Polly, RB Laghumavarapu, B Liang, ... Applied Physics Letters 105 (25), 2014.

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Characterization of InAlAs solar cells grown by MOVPE. BL Smith, SD Hellstroem, GT Nelson, ZS Bittner, MA Slocum, DV Forbes, ... 2014 IEEE 40th Photovoltaic Specialist Conference (PVSC), 1180-1185, 2014.

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Development of InGaAs solar cells for> 44% efficient transfer-printed multi-junctions. MP Lumb, M Meitl, J Wilson, S Bonafede, S Burroughs, DV Forbes, ... 2014 IEEE 40th Photovoltaic Specialist Conference (PVSC), 0491-0494, 2014.

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Delta-doping effects on quantum-dot solar cells. SJ Polly, DV Forbes, K Driscoll, S Hellstro m, SM Hubbard IEEE Journal of Photovoltaics 4 (4), 1079-1085, 2014.

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Effects of electric field on thermal and tunneling carrier escape in InAs/GaAs quantum dot solar cells. Y Dai, S Polly, S Hellstro m, K Driscoll, DV Forbes, SM Hubbard, ... Physics, Simulation, and Photonic Engineering of Photovoltaic Devices III ..., 2014.

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Improved bandgap-voltage offset in InGaAs/InAlGaAs quantum well solar cells. CG Bailey, MP Lumb, DV Forbes, MK Yakes, M Gonzalez, SM Hubbard, ... 2013 IEEE 39th Photovoltaic Specialists Conference (PVSC) PART 2, 032-037, 2013.

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Strain effects on radiation tolerance of triple-junction solar cells with InAs quantum dots in the GaAs junction. C Kerestes, CD Cress, BC Richards, DV Forbes, Y Lin, Z Bittner, SJ Polly, ... IEEE journal of Photovoltaics 4 (1), 224-232, 2013.

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Alpha radiation effects on nip quantum dot epitaxial lift-off solar cells. MF Bennett, ZS Bittner, DV Forbes, R Tatavarti, A Wibowo, N Pan, ... 2013 IEEE 39th Photovoltaic Specialists Conference (PVSC), 2784-2789, 2013.

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The effect of GaAs capping layer thickness on quantum dot solar cell performance. DV Forbes, C Bailey, SJ Polly, A Podell, SM Hubbard 2013 IEEE 39th Photovoltaic Specialists Conference (PVSC), 3203-3207, 2013.

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Performance and radiation resistance of quantum dot multi-junction solar cells. BC Richards, Y Lin, P Patel, D Chumney, PR Sharps, C Kerestes, ... 2013 IEEE 39th Photovoltaic Specialists Conference (PVSC), 0158-0161, 2013.

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Improved radiation resistance of epitaxial lift-off inverted metamorphic solar cells. JGJ Adams, VC Elarde, G Hillier, C Stender, F Tuminello, A Wibowo, ... 2013 IEEE 39th Photovoltaic Specialists Conference (PVSC), 3229-3232, 2013.

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An evaluation of fabrication methods for doping superlattice devices. MA Slocum, DV Forbes, MH Bohra, SM Hubbard 2013 IEEE 39th Photovoltaic Specialists Conference (PVSC), 1727-1732, 2013.

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Investigation of the design parameters of quantum dot enhanced III-V solar cells. K Driscoll, M Bennett, S Polly, DV Forbes, SM Hubbard Physics, Simulation, and Photonic Engineering of Photovoltaic Devices II ..., 2013.

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Optical study of carrier transport in inas/gaas quantum dots solar cell. Y Dai, S Hellstroem, S Polly, J Hatakeyama, D Forbes, S Hubbard 2013 IEEE 39th Photovoltaic Specialists Conference (PVSC), 0271-0276, 2013.

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A study on hybrid organic/silicon heterojunction solar cells. ZS Bittner, S Spencer, A Terrinoni, SM Hubbard 2013 IEEE 39th Photovoltaic Specialists Conference (PVSC), 0997-1002, 2013.

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GaSb/InGaAs quantum dot-well solar cells. RB Laghumavarapu, BL Liang, Z Bittner, TS Navruz, SM Hubbard, ... 2013 IEEE 39th Photovoltaic Specialists Conference (PVSC), 0292-0295, 2013.

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Investigation of carrier removal from QD TJSCs. C Kerestes, DV Forbes, CD Cress, BC Richards, WT Lotshaw, ... Physics, Simulation, and Photonic Engineering of Photovoltaic Devices II ..., 2013.

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Characterization of radiation tolerance in doping superlattice solar cells. MA Slocum, DV Forbes, MH Bohra, SM Hubbard Physics, Simulation, and Photonic Engineering of Photovoltaic Devices II ..., 2013.

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Absorption Enhancement and Dark Current Reduction in Quantum Dot Solar Cells. S Hubbard, K Driscoll, S Hellstrom, M Bennett, S Polly, D Forbes, ... JSAP Annual Meetings Extended Abstracts The 74th JSAP Autumn Meeting 2013 ..., 2013.

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Effect of vicinal substrates on the growth and device performance of quantum dot solar cells. SM Hubbard, A Podell, C Mackos, S Polly, CG Bailey, DV Forbes Solar Energy Materials and Solar Cells 108, 256-262, 2013.

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Epitaxial lift-off of quantum dot enhanced GaAs single junction solar cells. MF Bennett, ZS Bittner, DV Forbes, S Rao Tatavarti, S Phillip Ahrenkiel, ... Applied Physics Letters 103 (21), 2013.

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OMVPE of InAs quantum dots on an InGaP surface. DV Forbes, AM Podell, MA Slocum, SJ Polly, SM Hubbard Materials science in semiconductor processing 16 (4), 1148-1153, 2013.

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GaSb/InGaAs quantum dot-well hybrid structure active regions in solar cells. RB Laghumavarapu, BL Liang, ZS Bittner, TS Navruz, SM Hubbard, ... Solar energy materials and solar cells 114, 165-171, 2013.

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InAs nanowires grown by metal-organic vapor-phase epitaxy (MOVPE) employing PS/PMMA diblock copolymer nanopatterning. Y Huang, TW Kim, S Xiong, LJ Mawst, TF Kuech, PF Nealey, Y Dai, ... Nano letters 13 (12), 5979-5984, 2013.

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Characterization of a quantum dot nipi photovoltaic device. MA Slocum, DV Forbes, P Roland, R Ellingson, SM Hubbard 2012 38th IEEE Photovoltaic Specialists Conference, 002970-002975, 2012.

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Interface quality enhancement of the epitaxial regrowth process for [i] nipi [/i] photovoltaic devices. MA Slocum, DV Forbes, SM Hubbard Physics, Simulation, and Photonic Engineering of Photovoltaic Devices 8256 ..., 2012.

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Correlation between quantum dot morphology and photovoltaic performance. DV Forbes, CG Bailey, S Polly, ZS Bittner, C Kerestes, M Slocum, ... 2012 38th IEEE Photovoltaic Specialists Conference, 001798-001802, 2012.

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Characterization of InGaP heterojunction emitter quantum dot solar cells. ZS Bittner, DV Forbes, CG Bailey, SJ Polly, MA Slocum, C Kerestes, ... 2012 38th IEEE Photovoltaic Specialists Conference, 003158-003161, 2012.

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Optimization of growth and device performance for InAs quantum dot solar cells. SM Hubbard, M Bennett, A Podell, DV Forbes 2012 38th IEEE Photovoltaic Specialists Conference, 001788-001793, 2012.

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Spectroscopic analysis of InAs quantum dot solar cells. SJ Polly, CG Bailey, ZS Bittner, Y Dai, EG Fernandez, SM Hubbard Physics, Simulation, and Photonic Engineering of Photovoltaic Devices 8256 ..., 2012.

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Open-circuit voltage improvement of InAs/GaAs quantum-dot solar cells using reduced InAs coverage. CG Bailey, DV Forbes, SJ Polly, ZS Bittner, Y Dai, C Mackos, RP Raffaelle, ... IEEE Journal of Photovoltaics 2 (3), 269-275, 2012.

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Radiation effects in carbon nanoelectronics. CD Cress, JJ McMorrow, JT Robinson, BJ Landi, SM Hubbard, ... Electronics 1 (1), 23-31, 2012.

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Investigation of carrier escape mechanism in InAs/GaAs quantum dot solar cells. Y Dai, CG Bailey, C Kerestes, DV Forbes, SM Hubbard 2012 38th IEEE Photovoltaic Specialists Conference, 000039-000044, 2012.

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High Efficiency Nanostructured III-V Photovoltaics for Solar Concentrator Application. S Hubbard Rochester Institute of Technology, 2012.

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Radiation effect models in solar cells-Comparison of simulations with experimental data. A Fedoseyev, T Bald, M Turowski, A Raman, C Cress, R Walters, ... 2012 38th IEEE Photovoltaic Specialists Conference, 002801-002806, 2012.

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Low temperature analysis of quantum dot solar cells. SJ Polly, ZS Bittner, CG Bailey, DV Forbes, Y Dai, SM Hubbard 2012 38th IEEE Photovoltaic Specialists Conference, 000647-000651, 2012.

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Ion irradiation of electronic-type-separated single wall carbon nanotubes: A model for radiation effects in nanostructured carbon. JE Rossi, CD Cress, AR Helenic, CM Schauerman, RA DiLeo, ND Cox, ... Journal of Applied Physics 112 (3), 2012.

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Subbandgap current collection through the implementation of a doping superlattice solar cell. MA Slocum, DV Forbes, SM Hubbard Applied Physics Letters 101 (7), 2012.

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Bandgap optimization of lattice matched triple junction solar cells by incorporation of InAs quantum dots. BC Richards, Y Lin, P Pate, D Chumney, PR Sharps, C Kerestes, ... 2012 38th IEEE Photovoltaic Specialists Conference, 002797-002800, 2012.

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Strain effects on radiation tolerance of quantum dot solar cells. C Kerestes, DV Forbes, Z Bittner, S Polly, Y Lin, B Richards, P Sharps, ... 2012 38th IEEE Photovoltaic Specialists Conference, 002792-002796, 2012.

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Temperature Dependent Characterization of Imbedded InAs Quantum Dots in GaAs Superlattice Solar Cell Structures by High Resolution X-ray Diffraction. JJ Sheng, DC Chapman, DM Wilt, SJ Polly, CG Bailey, C Kerestes, ... MRS Online Proceedings Library (OPL) 1432, mrss12-1432-g11-02, 2012.

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Radiation effects on quantum dot enhanced solar cells. C Kerestes, D Forbes, CG Bailey, J Spann, B Richards, P Sharps, ... Physics, Simulation, and Photonic Engineering of Photovoltaic Devices 8256 ..., 2012.

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Modeling the optical and electrical response of nanostructured III-V solar cells. K Driscoll, S Hubbard 2012 38th IEEE Photovoltaic Specialists Conference, 002985-002989, 2012.

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Simulation of nipi photovoltaic devices. MA Slocum, DV Forbes, CD Cress, S Polly, SM Hubbard Physics and Simulation of Optoelectronic Devices XIX 7933, 26-35, 2011.

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Investigation of spectral responsivity of InAs QD-embedded GaAs solar cells. CG Bailey, DV Forbes, RP Raffaelle, SM Hubbard Physics and Simulation of Optoelectronic Devices XIX 7933, 221-227, 2011.

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Investigation of quantum dot enhanced triple junction solar cells. C Kerestes, S Polly, D Forbes, C Bailey, S Hubbard, J Spann, P Patel, ... 2011 37th IEEE Photovoltaic Specialists Conference, 000127-000132, 2011.

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Near 1 V open circuit voltage InAs/GaAs quantum dot solar cells. CG Bailey, DV Forbes, RP Raffaelle, SM Hubbard Applied Physics Letters 98 (16), 2011.

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GaAs substrate misorientation and the effect on InAs quantum dot critical thickness. CR Mackos, DV Forbes, S Polly, A Podell, Y Dai, CG Bailey, SM Hubbard 2011 37th IEEE Photovoltaic Specialists Conference, 002633-002638, 2011.

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Development of a multi-source solar simulator for spatial uniformity and close spectral matching to AM0 and AM1. 5. SJ Polly, ZS Bittner, MF Bennett, RP Raffaelle, SM Hubbard 2011 37th IEEE Photovoltaic Specialists Conference, 001739-001743, 2011.

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Demonstration of a nipi diode photovoltaic. CD Cress, SJ Polly, SM Hubbard, RP Raffaelle, RJ Walters Progress in Photovoltaics: Research and Applications 19 (5), 552-559, 2011.

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Gallium phosphide solar cells with indium gallium phosphide quantum wells for high temperature applications. ZS Bittner, DV Forbes, M Nesnidal, SM Hubbard 2011 37th IEEE Photovoltaic Specialists Conference, 001959-001964, 2011.

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Epitaxial regrowth contacts for the nipi photovoltaic device. MA Slocum, DV Forbes, JS McNatt, SM Hubbard 2011 37th IEEE Photovoltaic Specialists Conference, 001914-001918, 2011.

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Substrate orientation effects on quantum dot enhanced GaAs solar cells. DV Forbes, CG Bailey, S Polly, C Plourde, J Okvath, SM Hubbard, ... 2010 35th IEEE Photovoltaic Specialists Conference, 001804-001807, 2010.

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Nanotechnology for Photovoltaics. SM Hubbard, R Raffaelle, S Bailey USA: CRC Press, 2010.

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InAs quantum dot enhancement of GaAs solar cells. SM Hubbard, C Plourde, Z Bittner, CG Bailey, M Harris, T Bald, M Bennett, ... 2010 35th IEEE Photovoltaic Specialists Conference, 001217-001222, 2010.

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Cell Size Effects on Concentrator Solar Cell Performance. ZS Bittner, M Harris, S Polly, C Bailey, SM Hubbard Journal of the Microelectronic Engineering Conference 19 (1), 5, 2010.

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Au-catalyst-free epitaxy of InAs nanowires. D Forbes, S Hubbard, R Raffaelle, JS McNatt Journal of crystal growth 312 (8), 1391-1395, 2010.

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Effect of cell size on GaAs concentrators with InAs quantum dots. SJ Polly, ML Harris, Z Bittner, CR Plourde, CG Bailey, DV Forbes, ... 2010 35th IEEE Photovoltaic Specialists Conference, 002057-002061, 2010.

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Investigation and modeling of space radiation effects in quantum dot solar cells. AI Fedoseyev, M Turowski, A Raman, EW Taylor, S Hubbard, S Polly, ... 2010 35th IEEE Photovoltaic Specialists Conference, 002533-002536, 2010.

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Temperature dependent photoluminescence spectroscopy of InAs/GaAs solar cells. CG Bailey, SJ Polly, J Okvath, DV Forbes, CD Cress, SM Hubbard, ... 2010 35th IEEE Photovoltaic Specialists Conference, 000364-000369, 2010.

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Solar-cell-efficiency enhan-cement using nanostructures [ ]. D Forbes, S Hubbard Solar & Alternative Energy. SPIE, 2010.

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Quantum dot solar cells. SM Hubbard, R Raffaelle, S Bailey Nanotechnology for Photovoltaics, 297-340, 2010.

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Boosting solar-cell efficiency with quantum-dot-based nanotechnology. S Hubbard, R Raffaelle SPIE Newsroom, 2010.

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Journal of Microelectronic Research 2010. A Chadwick, KD Hirschman, C Chao, D Hwang, H Zhiyuan Hu, ZS Bittner, ... .

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III-V quantum dot enhanced photovoltaic devices. DV Forbes, SM Hubbard, C Bailey, S Polly, J Andersen, R Raffaelle Next Generation (Nano) Photonic and Cell Technologies for Solar Energy ..., 2010.

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Evaluation of strain balancing layer thickness for InAs. CG BAILEY, SM HUBBARD, DV FORBES, RP RAFFAELLE Applied physics letters 95 (20), 2009.

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Effect of barrier thickness on strain balanced InAs/GaAs QD solar cells. CG Bailey, SM Hubbard, DV Forbes, R Aguinaldo, CD Cress, SJ Polly, ... 2009 34th IEEE Photovoltaic Specialists Conference (PVSC), 000137-000140, 2009.

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Electroplating as an economical means to lower series resistance in GaAs concentrator solar cells. M Harris, SM Hubbard, M Kassis, S Polly, CG Bailey, P Jarosz 2009 34th IEEE Photovoltaic Specialists Conference (PVSC), 002096-002101, 2009.

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Analysis and modeling of space radiation effects in quantum dot based nanomaterials for high-efficiency photovoltaic cells. AI Fedoseyev, M Turowski, A Raman, AA Balandin, Q Shao, S Hubbard, ... 2009 34th IEEE Photovoltaic Specialists Conference (PVSC), 000462-000464, 2009.

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Nanostructured photovoltaics for space power. S Hubbard, C Bailey, S Polly, CD Cress, J Andersen, DV Forbes, ... Journal of Nanophotonics 3 (1), 031880, 2009.

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Characterization of quantum dot enhanced solar cells for concentrator photovoltaics. SM Hubbard, CG Bailey, R Aguinaldo, S Polly, DV Forbes, RP Raffaelle 2009 34th IEEE Photovoltaic Specialists Conference (PVSC), 000090-000095, 2009.

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The future of space photovoltaics. S Bailey, J McNatt, R Raffaelle, S Hubbard, D Forbes, L Fritzenmeier, ... 2009 34th IEEE Photovoltaic Specialists Conference (PVSC), 001909-001913, 2009.

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Evaluation of strain balancing layer thickness for InAs/GaAs quantum dot arrays using high resolution x-ray diffraction and photoluminescence. CG Bailey, SM Hubbard, DV Forbes, RP Raffaelle Applied Physics Letters 95 (20), 2009.

Found on Publication Page

The effect of Te as a surfactant on OMVPE of InAs quantum dots. DV Forbes, CG Bailey, S Polly, SM Hubbard, W Maurer, RP Raffaelle 2009 34th IEEE Photovoltaic Specialists Conference (PVSC), 000400-000404, 2009.

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(a) Professional Preparation. SM Hubbard Applied Physics Letters 95, 203110, 2009.

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Thermal and spectroscopic characterization of quantum dot-enhanced solar cells. J Gardner, E Albers, CG Bailey, S Hubbard, R Raffaelle 2009 34th IEEE Photovoltaic Specialists Conference (PVSC), 000993-000998, 2009.

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Thin film III-V solar cells on Mo foil. SJ Polly, CR Plourde, CG Bailey, C Leitz, C Vineis, MP Brindak, ... 2009 34th IEEE Photovoltaic Specialists Conference (PVSC), 001377-001380, 2009.

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Space radiation effects modeling and analysis of quantum dot based photovoltaic cells. AI Fedoseyev, M Turowski, A Raman, EW Taylor, S Hubbard, S Polly, ... Nanophotonics and Macrophotonics for Space Environments III 7467, 36-45, 2009.

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Analysis of strain compensated GaAs-based InAs QD solar cells. CD Cress, SM Hubbard, SI Maximenko, CG Bailey, DV Forbes, ... 2009 34th IEEE Photovoltaic Specialists Conference (PVSC), 001157-001162, 2009.

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Nanostructured Solar Cells. SG Bailey, S Hubbard, RP Raffaelle Handbook of Self Assembled Semiconductor Nanostructures for Novel Devices in ..., 2008.

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Progress Towards III-V Photovoltaics on Flexible Substrates. RP Raffaelle, EB Clark, L Fritzemeier, CG Bailey, WF Maurer, AMT Pal, ... .

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Short circuit current enhancement of GaAs solar cells using strain compensated InAs quantum dots. SM Hubbard, CG Bailey, CD Cress, S Polly, J Clark, DV Forbes, ... 2008 33rd IEEE Photovoltaic Specialists Conference, 1-6, 2008.

Found on Publication Page

Radiation effects on strain compensated quantum dot solar cells. CD Cress, CG Bailey, SM Hubbard, DM Wilt, SG Bailey, RP Raffaelle 2008 33rd IEEE Photovoltaic Specialists Conference, 1-6, 2008.

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Effect of strain compensation on quantum dot enhanced GaAs solar cells. SM Hubbard, CD Cress, CG Bailey, RP Raffaelle, SG Bailey, DM Wilt Applied Physics Letters 92 (12), 2008.

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Progress Towards III-V Photovoltaics on Flexible Substrates. J McNatt, AM Pal, E Clark, A Sayir, R Raffaelle, L Fritzemeier, C Bailey, ... 6th International Energy Conversion Engineering Conference (IECEC), 5756, 2008.

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Quantum Dot Space Solar Cells. D Forbes, C Bailey, S Polly, S Hubbard, R Rafaelle, S Bailey, D Wilt, ... 6th International Energy Conversion Engineering Conference (IECEC), 5757, 2008.

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Quantum Dot Spectral Tuning of Multijunction III-V Solar Cells. C Bailey, S Hubbard, SJ Polly, DV Forbes, RP Raffaelle MRS Online Proceedings Library (OPL) 1121, 1121-N10-02, 2008.

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Thin film poly III-V space solar cells. SG Bailey, DM Wilt, JS McNatt, L Fritzenmeier, SM Hubbard, CG Bailey, ... 2008 33rd IEEE Photovoltaic Specialists Conference, 1-5, 2008.

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Growth and characterization of inas quantum dot enhanced photovoltaic devices. SM Hubbard, R Raffaelle, R Robinson, C Bailey, D Wilt, D Wolford, ... MRS Online Proceedings Library (OPL) 1017, 1017-DD13-11, 2007.

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Quantum dot solar cell tolerance to alpha-particle irradiation. CD Cress, SM Hubbard, BJ Landi, RP Raffaelle, DM Wilt Applied Physics Letters 91 (18), 2007.

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Analysis of strain compensation in quantum dot embedded GaAs solar cells. C Bailey, C Cress, R Raffaelle, S Hubbard, W Maurer, D Wilt, S Bailey MRS Online Proceedings Library (OPL) 1031, 1031-H13-18, 2007.

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Gas sensing properties of porous ZnO nano-platelet films. A Saluja, J Pan, L Kerr, E Cho, S Hubbard MRS Online Proceedings Library (OPL) 1035, 1035-L11-07, 2007.

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Thermal dependence of quantum dot solar cells. C Cress, SM Hubbard, C Bailey, R Robinson, BJ Landi, RP Raffaelle MRS Online Proceedings Library (OPL) 1031, 1031-H13-19, 2007.

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OMVPE grown InAs quantum dots for application in nanostructured photovoltaics. SM Hubbard, D Wilt, S Bailey, D Byrnes, R Raffaelle 2006 IEEE 4th World Conference on Photovoltaic Energy Conference 1, 118-121, 2006.

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Technology aspects of GaN-based diodes for high-field operation. K Mutamba, O Yilmazoglu, C Sydlo, M Mir, S Hubbard, G Zhao, ... Superlattices and Microstructures 40 (4-6), 363-368, 2006.

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Improvement of CO sensitivity in GaN-based gas sensors. E Cho, D Pavlidis, G Zhao, SM Hubbard, J Schwank IEICE transactions on electronics 89 (7), 1047-1051, 2006.

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Metalorganic vapor phase epitaxy (MOVPE) growth and characterization of III-nitride heterostructures for application in electronic devices. SM Hubbard University of Michigan, 2005.

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High-resistivity GaN buffer templates and their optimization for GaN-based HFETs. SM Hubbard, G Zhao, D Pavlidis, W Sutton, E Cho Journal of crystal growth 284 (3-4), 297-305, 2005.

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Yellow luminescence centers of GaN. G Zhao, S Hubbard, D Pavlidis Japanese journal of applied physics 43 (5R), 2471, 2004.

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Measurement of N-Type 6H SiC Minority-Carrier Diffusion Lengths by Electron Bombardment of Schottky Barriers. SM Hubbard, M Tabib-Azar, S Balley, G Rybickid, P Neudeck, R Raffaelle Proceedings of the 15th Space Photovoltaic Research and Technology Conference, 2004.

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Optimization of GaN Channel Conductivity in AlGaN/GaN HFET Structures Grown by MOVPE. SM Hubbard, G Zhao, D Pavlidis, E Cho, W Sutton MRS Online Proceedings Library (OPL) 831, E11. 11, 2004.

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Luminescence of GaN nanocolumns obtained by photon-assisted anodic etching. IM Tiginyanu, VV Ursaki, VV Zalamai, S Langa, S Hubbard, D Pavlidis, ... Applied physics letters 83 (8), 1551-1553, 2003.

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Persistent photoconductivity and optical quenching of photocurrent in GaN layers under dual excitation. VV Ursaki, IM Tiginyanu, PC Ricci, A Anedda, S Hubbard, D Pavlidis Journal of applied physics 94 (6), 3875-3882, 2003.

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Field emission from quantum size GaN structures. O Yilmazoglu, D Pavlidis, YM Litvin, S Hubbard, IM Tiginyanu, K Mutamba, ... Applied surface science 220 (1-4), 46-50, 2003.

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Optical characterization of AlN/GaN heterostructures. VV Ursaki, IM Tiginyanu, VV Zalamai, SM Hubbard, D Pavlidis Journal of applied physics 94 (8), 4813-4818, 2003.

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Free excitons in strained MOCVD-grown GaN layers. NN Syrbu, IM Tiginyanu, VV Ursaki, VV Zalamai, V Popa, SM Hubbard, ... MRS Internet Journal of Nitride Semiconductor Research 8, 1-5, 2003.

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Optical characterization of strains in AlN/GaN heterostructures. VV Zalamai, VV Ursaki, IM Tiginyanu, NN Syrbu, A Ghicov, S Hubbard, ... Moldavian Journal of the Physical Sciences 2, 2003.

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A novel Pt-AlGaN/GaN heterostructure Schottky diode gas sensor on Si. G Zhao, W Sutton, D Pavlidis, EL Piner, J Schwank, S Hubbard IEICE transactions on electronics 86 (10), 2027-2031, 2003.

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Sharp variations in the temperature dependence of optical reflectivity from AlN/GaN heterostructures. VV Ursaki, IM Tiginyanu, NN Syrbu, VV Zalamai, S Hubbard, D Pavlidis Semiconductor science and technology 18 (2), L9, 2002.

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Electrical characterization and cathodoluminescence microanalysis of AlN/GaN heterostructures. SM Hubbard, D Pavlidis, V Valiaev, MA Stevens-Kalceff, IM Tiginyanu Materials Science and Engineering: B 91, 336-340, 2002.

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Metal-organic vapor phase epitaxy growth and characterization of AlN/GaN heterostructures. SM Hubbard, D Pavlidis, V Valiaev, A Eisenbach Journal of electronic materials 31, 395-401, 2002.

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Impact of doping and MOCVD conditions on minority carrier lifetime of zinc-and carbon-doped InGaAs and its applications to zinc-and carbon-doped InP/InGaAs heterostructure .... D Cui, SM Hubbard, D Pavlidis, A Eisenbach, C Chelli Semiconductor science and technology 17 (6), 503, 2002.

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Hot-phonon limited electron energy relaxation in AlN/GaN. A Matulionis, J Liberis, L Ardaravic ius, J Smart, D Pavlidis, S Hubbard, ... International journal of high speed electronics and systems 12 (02), 459-468, 2002.

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Fast and ultrafast processes in AlGaN/GaN channels. A Matulionis, J Liberis, L Ardaravic ius, M Ramonas, T Zubkute , ... physica status solidi (b) 234 (3), 826-829, 2002.

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Gallium nitride T-ray transmission characteristics. B Ferguson, SP Mickan, S Hubbard, D Pavlidis, D Abbott Electronics and Structures for MEMS II 4591, 210-220, 2001.

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Fro hlich modes in GaN columnar nanostructures. IM Tiginyanu, A Sarua, G Irmer, J Monecke, SM Hubbard, D Pavlidis, ... Physical Review B 64 (23), 233317, 2001.

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GaN-based NDR devices for THz generation. E Alekseev, A Eisenbach, D Pavlidis, SM Hubbard, W Sutton Proc. of the Eleventh Int. Symp. on Space Terahertz Technology 162, 2000.

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Photo-luminescence and transmission electron microscope studies of low-and high-reliability AlGaAs/GaAs HBTs. S Mohammadi, SM Hubbard, C Chelli, D Pavlidis, B Bayraktaroglu Solid-State Electronics 44 (4), 739-746, 2000.

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Development of GaN-based Gunn-effect millimeter-wave sources. E Alekseev, A Eisenbach, D Pavlidis, SM Hubbard, W Sutton Proc. 24th Workshop on Compound Semiconductor Devices and Integrated ..., 2000.

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Optical and electrical characterization of SiC devices. RP Raffaelle, SG Bailey, P Neudeck, R Okojie, CM Schnabel, ... Conference Record of the Twenty-Eighth IEEE Photovoltaic Specialists ..., 2000.

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Electrodeposited CdS on CIS pn junctions. RP Raffaelle, H Forsell, T Potdevin, R Friedfeld, JG Mantovani, SG Bailey, ... Solar Energy Materials and Solar Cells 57 (2), 167-178, 1999.

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Minority carrier lifetime in MOCVD-grown C-and Zn-doped InGaAs. C Chellic, D Cui, SM Hubbard, A Eisenbach, D Pavlidis, SK Krawczyk, ... Conference Proceedings. Eleventh International Conference on Indium ..., 1999.

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CROSS-DISCIPLINARY PHYSICS (PACS 81-98)-Mapping of crystal defects and the minority carrier diffusion length in 6H-SiC using a novel electron beam induced current technique. M Tabib-Azar, SM Hubbard, CM Schnabel, S Bailey Journal of Applied Physics 84 (7), 3986-3992, 1998.

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Mapping of crystal defects and the minority carrier diffusion length in 6H-SiC using a novel electron beam induced current technique. M Tabib-Azar, SM Hubbard, CM Schnabel, S Bailey Journal of applied physics 84 (7), 3986-3992, 1998.

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Effect of crystal defects on minority carrier diffusion lengths in 6H SiC [solar cells]. SM Hubbard, M Tabib-Azar, S Bailey, G Rybicki, P Neudeck, R Raffaelle Conference Record of the Twenty Sixth IEEE Photovoltaic Specialists ..., 1997.

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Electrodeposited CuInSe/sub 2/thin film devices. RP Raffaelle, JG Mantovani, RB Friedfeld, SG Bailey, SM Hubbard Conference Record of the Twenty Sixth IEEE Photovoltaic Specialists ..., 1997.

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Modeling free-carrier absorption in ultrathin III-V solar cells with light management: supplement. JR D'ROZARIO, SJ POLLY, GT NELSON, D WILT, SM HUBBARD .

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Defect Characterization of Proton Irradiated GaAs pn-Junction Diodes with Embedded Ten Layers of InAs Quantum Dots. S Sato, KJ Schmieder, SM Hubbard, DV Forbes, JH Warner, T Ohshima, ... .

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SF. 9-O001 Invited THIN-FILM VAPOR-LIQUID-SOLID GROWTH OF InP FOR III-V PHOTOVOLTAICS. CG Bailey, S Babcock, M Lichty, G Rajan, T Ashrafee, S Marsillac, ... .

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Electronic Supplemental Information for. P Dutta, M Rathi, D Khatiwada, S Sun, Y Yao, B Yu, S Reed, M Kacharia, ... .

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Optical Properties of InP from the Infrared to Vacuum Ultraviolet by Spectroscopic Ellipsometry. I Subedi, M Slocum, D Forbes, S Hubbard, NJ Podraza Interface 365, 0.002, 0.

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GaN-NEW MATERIAL FOR GAS SENSOR APPLICATIONS. V Popa, G Korotcenkov, I Tiginyanu, V Brinzari, SM Hubbard, D Pavlidis .

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Gao, Junning, 85 Gila, B., 143. S Gonda, OO Akinwunmi, MF Al-Kuhaili, J Anaya, A Armstrong, S Atcitty, ... .

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Afshar, Amir, 127 Aierken, Abuduwayiti, 75 Asano, Katsunori, 121 Ashida, Masaaki, 103. K Bansal, A Barcz, D Barlage, LD Bell, S Bentley, A Bhattacharya, ... .

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Ion Irradiation of Electronic-Type-Separated SWCNTs: A Model for Radiation Effects in Nanostructured Carbon. JE Rossi, CD Cress, AR Helenic, CM Schauerman, RA DiLeo, ND Cox, ... .

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Solar & Alternative Energy Boosting solar-cell efficiency with quantum-dot-based nanotechnology. S Hubbard, R Raffaelle .

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Nanomaterials for Space Power. RP Raffaelle, BJ Landi, C Cress, R DiLeo, C Schauerman, M Giarra, ... .

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WCPEC-4 Organizing Committee. SG Bailey, H Ossenbrink, M Konagai, TJ Coutts, E Dunlop, H Okamoto, ... .

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Thin Films: Perovskites, Chalcogenides, Organics, and Amorphous Silicon The Impact of Hot Injection Reaction Temperature on the Properties of Cu2ZnSnS4 Nanocrystal Thin Films .... Y Zheng, X Zhang, X Yang, Y Tai, J Zhang, B Li, L Feng, C Alla, ... .

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Novel Quantum Size GaN Field Emitter. O Yilmazoglu, D Pavlidis, YM Litvin, S Hubbard, IM Tiginyanu, K Mutamba, ... .

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Front Contact Grid Design for Terrestrial ITT-V Concentrator Solar Cells. SJ Polly, M Jackson, S Hubbard .

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Investigation of Optical Transitions in InAs/GaAs (Sb)/AlAsSb QDs using Modulation Spectroscopy. ZS Bittner, S Hellstroem, SJ Polly, RB Laghumavarapu, B Liang, ... .

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