Publications

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. Methylamine Vapor Exposure for Improved Morphology and Stability of Cesium-Methylammonium Lead Halide Perovskite Thin-Films. The Physics of Semiconductor Devices, Proceedings of IWPSD 2017, 2019.

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. The dual role of ozone-treated aluminum doped zinc oxide for CH$_3$NH$_3$PbI$_3$ solar cells. Organic Electronics, 2018.

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. SIMS characterization of TiN diffusion barrier layer on steel substrate. 2018.

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. Radial junction silicon solar cells with micro-pillar array and planar electrode interface for improved photon management and carrier extraction. Current Applied Physics, 2018.

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. Optimization of controlled two-step liquid phase crystallization of Ge-on-Si. 2018.

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. Laser crystallization of amorphous Ge thin films using pulsed Nd:YAG. 2018.

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. Enhancement in Open-Circuit Voltage of Semi-transparent, stable MAPbI$_3-x$Br$_x$ perovskite solar cells by methyl amine treatment and optimal Hole Transport Layer. 2018.

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. Control of Conductivity in Manganese Vanadium Oxide. 2018.

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. Acetamidinium substituted methyl ammonium perovskite cells with higher open-circuit voltage and improved intrinsic stability. 2018.

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. Improvement in morphology and carrier lifetime by inclusion of Magnesium in the perovskite matrix. 2018.

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. Electron transport layer free perovskite solar cell with high open circuit voltage and dependence of scan rate on device performance. 2018.

. Vapor induced Recrystallization of Methylammonium Tin Iodide Perovskite for Enhanced Stability. 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion (WCPEC) (A Joint Conference of 45th IEEE PVSC, 28th PVSEC 34th EU PVSEC), 2018.

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. Ozone-Treated Aluminum Doped Zinc Oxide for ETL-Free Stable Perovskite Solar Cells. 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion (WCPEC) (A Joint Conference of 45th IEEE PVSC, 28th PVSEC 34th EU PVSEC), 2018.

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. Modified Transport-Layer Interfaces for Efficient and Hysteresis-free Planar-Perovskite Solar Cells. 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion (WCPEC) (A Joint Conference of 45th IEEE PVSC, 28th PVSEC 34th EU PVSEC), 2018.

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. Infrared (IR) photo-resistors based on re-crystallized amorphous germanium films on silicon using liquid phase crystallization. Proc.SPIE, 2018.

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. Highly Crystalline Methylammonium Tin Iodide Perovskite Films using Post-deposition Methylamine Vapor Annealing for Improved Grain Size. 2018.

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. Higher Open-Circuit Voltage and Stability in MAPbI3 Perovskite Solar Cells Using A Bilayer Hole-Transport Layer with a D-A-D Architectured Polymer. 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion (WCPEC) (A Joint Conference of 45th IEEE PVSC, 28th PVSEC 34th EU PVSEC), 2018.

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. High Quality Epitaxial Germanium on Si (110) using Liquid Phase Epitaxy for Low-Cost III-V Solar Cells. 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion (WCPEC) (A Joint Conference of 45th IEEE PVSC, 28th PVSEC 34th EU PVSEC), 2018.

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. Doped Cu$_2$O/ n-Si Heterojunction Solar Cell. 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion (WCPEC) (A Joint Conference of 45th IEEE PVSC, 28th PVSEC 34th EU PVSEC), 2018.

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. Demonstration of a new oxide absorber Ag$_2$CrO$_4$ using top-contacted Schottky Cells. 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion (WCPEC) (A Joint Conference of 45th IEEE PVSC, 28th PVSEC 34th EU PVSEC), 2018.

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. Wafer-scale epitaxial germanium (100), (111), (110) films on silicon using liquid phase crystallization. AIP Advances, 2018.

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. Methylamine Vapor Exposure for Improved Morphology and Stability of Cesium-Methylammonium Lead Halide Perovskite Thin-Films. The Physics of Semiconductor Devices, Springer Proceedings in Physics, 2018.

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. Effect of interface defect density on performance of perovskite solar cell: Correlation of simulation and experiment. Materials Letters, 2018.

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. Cation Exchange Assisted Dimensional Down-conversion of Perovskite Thin Films using Vapor Annealing: An Interplay of Tolerance Factor. Integrated Ferroelectric, 2018.

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. BaBiO$_3$: A potential absorber for all-oxide photovoltaics. Materials Letters, 2018.

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. Methylamine Vapor Annealing for Improved Morphology and Stability of Caesium-methylamine Lead Halide Perovskite Thin-Films. 2017.

. Cation Exchange for 3D-2H Transformation of Perovskite Thin Films using Vapour Annealing: An Interplay of Tolerance Factor. 2017.

. Optical Properties of Zn$_2$Mo$_3$O$_8$: Combination of Theoretical and Experimental Study. The Journal of Physical Chemistry C, 2017.

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. Interaction of Humidity and Polar Molecules with Mixed Cation Perovskite for High Efficiency Solar Cells: Materials and Device Study. 2017.

. High Quality Epitaxial Germanium on Si (111) using a two- step Annealing Process. 2017.

. Hole-Selective Electron-Blocking Copper Oxide Contact for Silicon Solar Cells. IEEE Journal of Photovoltaics, 2017.

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. Perovskite Grain Size Modulation by annealing in Methyl-Amine Environment. 2017 IEEE 44th Photovoltaic Specialist Conference (PVSC), 2017.

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. Laser Crystallization of Amorphous Germanium on Titanium Nitride-Coated Steel for Low-Cost GaAs Solar-Cells. 2017 IEEE 44th Photovoltaic Specialist Conference (PVSC), 2017.

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. High-Quality GaAs (100) Thin Films on Silicon (100) Using Epitaxial Germanium (100) Buffer for Low-Cost III-V Solar Cells. 2017.

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. High Quality Epitaxial Germanium on Si (100) for low -cost III–V Solar-Cells. 2017 IEEE 44th Photovoltaic Specialist Conference (PVSC), 2017.

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. Grain boundaries in Thin-Film Polycrystalline GaAs Solar Cells: A Simulation Study. 2017 IEEE 44th Photovoltaic Specialist Conference (PVSC), 2017.

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. Electro-optical Properties of Zn$_2$Mo$_3$O$_8$ Thin-Films: A Novel Low-Bandgap Solar Absorber. 2017 IEEE 44th Photovoltaic Specialist Conference (PVSC), 2017.

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. Effect of Annealing on Performance of Solar Cells with New Oxide Absorber Mn$_2$V$_2$O$_7$. 2017 IEEE 44th Photovoltaic Specialist Conference (PVSC), 2017.

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. Charge Carrier Lifetime in CH$_3$NH$_3$PbI$_3$ Thin Film: Role of Humidity. 2017.

. Zinc Molybdenum Oxide - A New Solar Absorber. 2017.

. Ultra-Thin SiO$_2$ Layers for Defect-Free Si/oxide Carrier Selective Contacts. 2017.

. Liquid Phase Epitaxy for Growth of High-Quality Crystalline Germanium (100) on Silicon (100) Wafers. 2017.

. Effects of Columnar Grain Boundaries on Thin Film Polycrystalline GaAs Solar Cells. 2017.

. Cu$_2$O/Si Heterojunction Based Carrier Selective Contact for Silicon Photovoltaics. 2017.

. Compact-TiO$_2$ Deposited via ALD for Highly-Repeatable and Low-Hysteresis Perovskite Solar Cells. 2017.

. Characterization of Titanium Nitride as Iron Diffusion Barrier for GaAs Thin Film Solar Cell on Steel. 2017.

. Large grained and high charge carrier lifetime CH$_3$NH$_3$PbI$_3$ thin-films: implications for perovskite solar cells. Current Applied Physics, 2017.

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. Zinc-Molybdenum-Oxide: A New Solar Absorber. 2016.

. Tunnel Diodes for Perovskite/Silicon Tandem Solar Cell. 2016.

. Ohmic contact formation between Titanium Nitride and n type germanium thin films. 2016.

. Epitaxial germanium thin films on silicon (100) using two-step process. 2016 3rd International Conference on Emerging Electronics (ICEE), 2016.

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. Epitaxial Germanium films on Silicon(100) for heterogeneous integration with Silicon Photonics. 2016.

. Effect of Grain-Boundaries on Efficiency of Thin-Film Gallium Arsenide Solar Cells with Columnar Grain Structure. 2016.

. Fabrication of Esaki tunnel Diode for Silicon/Pervoskite Tandem Cell. 2016.

. 3D Ti/TiO$_2$ photoelectrodes for sensitized solar cells. 2016.

. Electron-Blocking Properties of Crystalline-Silicon/Cu$_2$O Heterojunctions for Photovoltaics. 2016.

. Titanium dioxide/silicon hole-blocking selective contact to enable double-heterojunction crystalline silicon-based solar cell. Applied Physics Letters, 2015.

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. Stable low-recombination n-Si/TiO2 hole-blocking interface and its effect on silicon heterojunction photovoltaics. 2014 IEEE 40th Photovoltaic Specialist Conference (PVSC), 2014.

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. Double-heterojunction crystalline silicon solar cell fabricated at 250 $^i̧rc$C with 12.9% efficiency. 2014 IEEE 40th Photovoltaic Specialist Conference (PVSC), 2014.

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. Silicon/Organic Heterojunction Photovoltaic Cell with 12.7% Efficiency by Use of Spray-Coated Nanowire Transparent Conductor. 2014.

. Hole-Blocking Metal-Oxide/Crystalline-Silicon Heterojunctions with Recombination Velocity of $<$ 100 cm/s. 2014.

. Growth Mechanism and Carrier Transport in Hole-Blocking TiO$_2$/Silicon Heterojunctions. 2014.

. Effect of Annealing on Stability of Low Interface Recombination Velocity at TiO$_2$/p-Silicon Interface. 2014.

. A 12% Efficient Silicon/PEDOT:PSS Heterojunction Solar Cell Fabricated at <100 $^i̧rc$C. IEEE Journal of Photovoltaics, 2014.

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. Wide bandgap HBT on crystalline silicon using electron-blocking PEDOT:PSS emitter. 71st Device Research Conference, 2013.

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. Hole-blocking crystalline-silicon/titanium-oxide heterojunction with very low interface recombination velocity. Photovoltaic Specialists Conference (PVSC), 2013 IEEE 39th, 2013.

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. 12% Efficient Silicon/PEDOT:PSS Heterojunction Solar Cell Fabricated at <100 $^i̧rc$C. 2013.

. Wide Bandgap Heterojunctions on Crystalline Silicon. ECS Transactions, 2013.

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. Hole-blocking titanium-oxide/silicon heterojunction and its application to photovoltaics. Applied Physics Letters, 2013.

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. Current Mechanisms in Silicon-organic Heterojunction Solar Cells with Transfer Printed Metallization. 2012.

. Hole-blocking TiO2/silicon heterojunction for silicon photovoltaics. Device Research Conference (DRC), 70th, 2012.

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. Charge Separation and Minority Carrier Injection in P3HT-Silicon Heterojunction solar cells. Photovoltaic Specialists Conference (PVSC), 2011 37th IEEE, 2011.

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. The Role of P3HT Barriers in P3HT-Silicon Heterojunction Solar Cells with a High Open-Circuit Voltage. 2011.

. Role of Majority and Minority Carrier Barriers Silicon/Organic Hybrid Heterojunction Solar Cells. Advanced Materials, 2011.

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. Electronic structure and band alignment of 9,10-phenanthrenequinone passivated silicon surfaces. Surface Science, 2011.

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. P3HT-Silicon Organic-Silicon Heterojunction for Photovoltaic Applications. 2010.

. Silicon surface passivation by an organic overlayer of 9,10-phenanthrenequinone. Applied Physics Letters, 2010.

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. Towards Organic-based Dielectrics for Low-Temperature Silicon -based Devices for Large-Area Electronics. 2009.

. Stability of Electrical Properties of Silicon (100) Surfaces Passivated with 9,10-phenanthrenequinone. 2009.

. Reduction of minority carrier recombination at silicon surfaces and contacts using organic heterojunctions. Photovoltaic Specialists Conference (PVSC), 2009 34th IEEE, 2009.

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. Spin resonance of 2D electrons in a large-area silicon MOSFET. Physica E: Low-dimensional Systems and Nanostructures, 2008.

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. Electronic Passivation of Silicon (100) Surfaces by Organic Layer of 9,10-phenanthrenequinone. 2007.

. Electron Spin Resonance of Electrons in a Large-Area Silicon MOSFET. APS Meeting Abstracts, 2007.