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Department of Physics and Astronomy

Recent Ph.D.'s in Materials Science/Condensed Matter Physics

Name Ph.D. Received Dissertation Title Advisor Employment
Manoj Rajakaruna 2024 July

Development of Perovskite Ink and Scaling up Perovskite Solar Cells for Terrestrial and Space Applications

R.J. Ellingson Ìý
Marie Solange Tumusange 2024 April

Spectroscopic ÌýEllipsometry Studies of Perovskite Materials and Stability Evaluation for ÌýOptoelectronic Applications

N.J. Podraza Ìý
You Li 2024 April

Breaking Barriers in Perovskite Module Fabrication: Novel Strategies for Uniform Crystallization and Scalable Fabrication

Y. Yan Ìý
Sameer Hamadna 2024 April

Kinetic Monte Carlo and molecular dynamics studies of island nucleation, biosensor activation, and interstitial diffusion

J.G. Amar Ìý
Lei Chen 2023 November

Strategies to Enhance the Efficiency and Stability of Tin-Lead Perovskite Solar Cells and Their Applications in Tandems

Y. Yan Ìý
Niva Jayswal 2023 June

Optoelectronic and Structural Properties of Thin Films for Optoelectronic Devices and Role of Interface Structure on Photovoltaic Device Performance

N.J. Podraza Ìý
Manoj K. Jamarkattel 2023 March

Materials Engineering and Control for Advancing High-Efficiency CdSe/CdTe Solar Cells

M.J. Heben Ìý
Bishal Babu Dumre 2023 January

Characterization of Opto-Electronic Properties and Phase Diagrams of Photovoltaic Materials: A Computational Study utilizing Ab Initio Methods

S.V. Khare Ìý
Dipendra Pokhrel 2022 October

Novel and Nano-structured Materials for Advanced Chalcogenide Photovoltaics

R.J. Ellingson Ìý
Sandip Bista 2022 July

Rigid and Flexible CdTe Solar Cells Performance Improvement through CdCl2 Activation and Cu Engineering

Y. Yan Ìý
Ahmed Al-Bayati 2022 July

Design and ÌýAnalysis of Optical Directional Coupler and Long-range Surface Plasmon Biosensors with Applications

J.G. Amar and R. Deck Ìý
Suman Rijal 2022 July

Antimony Chalcogenide: Promising Material for Photovoltaics

Y. Yan Ìý
Zahrah Almutawah 2022 April

Developing Large Grain Perovskites Over Large Areas and Investigating Degradation Using Electroluminescence

M.J. Heben Ìý
Indiras Khatri 2022 April

Density Functional Theory and Accelerated Dynamics Studies of the Structural and Non-equilibrium Properties of Bulk Alloys and Thin-Films

J.G. Amar Ìý
Mohammed Razooqi Alaani 2022 February

Application of Techniques in Spectroscopic Ellipsometry for Analysis of the Component Layers in CdTe Solar Cells

R.W. Collins Ìý
Geethika Liyanage 2021 November

Improving Performance In Cadmium Telluride Solar Cells: From Fabrication To Understanding the Pathway Towards 25% Efficiency

M.J. Heben First Solar
Vijaya Adhikari 2021 July

Transition Metal Nitrides in M4N structure and TiN-ScN and TiN-YN Alloy System: A Computational Investigation by First-Principles Approach

S. Khare Department of Defense
Kamala Subedi 2021 June

Development and Application of Transparent p-type Back Contact Layer for Bifacial CdTe Solar Cells

R.J. Ellingson First Solar
Maria Patmiou 2021 May

Percolation with Plasticity Materials and their Neuromorphic Application

V. Karpov Ìý
Biswas Subedi 2020 November

Sub-Gap Absorption and Performance Losses in Mixed Cation Perovskites for Solar Cells

N.J. Podraza PVIC
Chongwen Li 2020 November

Normal-, low-, and wide-bandgap perovskites and their applications in solar cells

Y. Yan University of Toledo
Rasha Awni 2020 September

Characterization of electrical properties of thin-film solar cells

Y. Yan University of Toledo
Niraj Shrestha 2020 August Optoelectronic Properties of CdSexTe1-x, CuInSe2 and Perovskites for Photovoltaic Applications R.J. Ellingson NP photonics
Fadhil K. Alfadhili 2020 May Development of Back Contacts for CdTe Thin Films Solar Cells M.J. Heben Ìý
Ebin Bastola 2020 April

CdTe Back Contact Engineering via Nanomaterials, Chemical Etching, Doping, and Surface Passivation

R.J. Ellingson Ìý
Osama Oudat 2020 April

Tin Whisker Statistics and Field-Induced Accelerated Development

V. Karpov ÌýWesterwood Global
Ramez Hosseinian Ahangharnejahd 2019 December

Fabrication of Perovskite Solar Cells & Applications in Multijunction Configurations

M.J. Heben Intel Corporation
Poudel, Tilak 2019 December

Study of Novel Metal Oxide Thin Films for Photoelectrochemical (PEC) Water Splitting Applications -- Hydrogen Fuel

X. Deng Intel Corporation
Adhikari, Dipendra 2019 December

Optical and Microstructural Properties of Sputtered Thin Films for Photovoltaic Applications

N.J. Podraza Intel Corporation
Uprety, Prakash 2019 August

A Non-Contacting Optical Probe of Electrical Transport Properties:Ìý Applications for Photovoltaics

N.J. Podraza ÌýIntel Corporation
Niraula, Dipesh 2019 August

Physics and applications of conductive filaments in electronic structures: from metal whiskers to solid state memory

V.G. Karpov ÌýUniversity of Michigan, Dept. of Radiology, Physics Division
Subedi, Indra 2019 May

Optical Evaluation and Simulation of Photovoltaic Devices for Thermal Management

N.J. Podraza Postdoctoral Research Associate, University of Toledo
Sabbar, Ehsan 2018 December

Defects and Island Nucleation in Materials: Kinetic Monte Carlo, Rate Equation Theory, and Temperature-Accelerated Dynamics Simulations

J.G. Amar ÌýAssistant Professor, Al Anbar University, Iraq
Ghimire, Kiran 2017 December

Application of Spectroscopic Ellipsometry:Ìý From Single Crystal Gd3Ga5O12 to Polycrystalline Perovskite Thin Films

N.J. Podraza ÌýSony Corporation
Tan, Xinxuan 2017 December

Applications of Multichannel Spectroscopic Ellipsometry for CdTe Photovoltaics: From Window Layers to Back Contacts

R.W. Collins ÌýNPI Engineer, MiaSole, Santa Clara, CA
Watthage, Suneth 2017 December

Solution Process Fabrication of Hybrid Organic-Inorganic Perovskites & Back Interface Engineering of Cadmium Telluride Solar Cells

M.J. Heben ÌýIntel Corporation
Yu, Yue 2017 December

Thin Film Solar Cells with Earth Abundant Elements: from Copper Zinc Tin Sulfide to Organic-Inorganic Hybrid Halide Perovskite

Y. Yan ÌýIntel Corporation
Junda, Maxwell 2017 May

Spectroscopic Ellipsometry as a Versatile, Non-Contact Probe of Optical, Electrical, and Structural Properties in Thin Films: Applications in Photovoltaics

N.J. Podraza ÌýCovalent Metrology
Pradhan, Puja 2017 May

Real Time Spectroscopic Ellipsometry Analysis of the Three Stages of Cu(In1-xGax)Se2 co-Evaporation

R.W. Collins Postdoctoral Research Associate, University of Toledo
Cimaroli, Alexander 2016 December

Development of Deposition and Characterization Systems for Thin Film Solar Cells

Y. Yan ÌýCalibration Laboratory
Liu, Zhi 2016 December

Transition Metal Nitrides and Their Solid Solutions: A First-Principles Approach with Cluster Expansion Computational Predictive Models

S.V. Khare ÌýSenior Software Engineer,
Ibdah, Abdel-Rahman 2016 August

Optical Physics of Cu(In,Ga)Se2 Solar Cells and Their Layer Components

R.W. Collins ÌýSamsung Semiconductor, Austin, TX
Song, Zhaoning 2016 August

Solution Processed High Efficiency Thin Film Solar Cells: from Copper Indium Chalcogenides to Methylammonium Lead Halides

M.J. Heben ÌýResearch Professor in Wright Center for Photovoltaics
Gautam, Laxmi Karki 2016 May

Spectroscopic Ellipsometry Studies of Thin Film Si:H Materials in Photovoltaic Applications from the Infrared to Ultraviolet

N.J. Podraza Intel Corporation
Huang, Zhiquan 2016 May

Spectroscopic Ellipsometry Studies of Thin Film a-Si:H/nc-Si:H Micromorph Solar Cell Fabrication in the p-i-n Superstrate Configuration

R.W. Collins ÌýKey Account Technologist, Lam Research, Fremont, CA
Roland, Paul 2015 December

Charge Carrier Processes in Photovoltaic Materials and Devices: Lead Sulfide Quantum Dots and Cadmium Telluride

R.J. Ellingson Test Engineer at SolAero Technologies Corporation
Haugen, Neale 2015 August

Spectroscopic Studies of Doping and Charge Transfer in Single Walled Carbon Nanotubes and PbS Quantum Dots

Ìý

R.J. Ellingson

Assistant Professor at Zhejiang Normal University, China

Ìý

Bhandari, Khagendra 2015 May

Characterization and Application of Colloidal Nanocrystalline Materials for Advanced Photovoltaics

R.J. Ellingson ÌýVisiting Assistant Professor at Ohio Northern University
Koirala, Prakash 2015 May

Multichannel Spectroscopic Ellipsometry for CdTe Photovoltaics: from Materials and Interfaces to Solar Cells

R.W. Collins ÌýProcess Development Engineer, Intel Corporation, Albuquerque, NM
Sainju, Deepak 2015 May

Spectroscopic Ellipsometry Studies of Ag and ZnO Thin Films and Their Interfaces for Thin Film Photovoltaics

R.W. Collins ÌýAssistant Professor, University of Connecticut
Shi, Tingting 2014 December

Optoelectronic and defect physics in earth abundant photovoltaic materials: First-principles calculations

Y. Yan ÌýJinan University, China
Hubartt, Brad 2014 December

Nucleation and Growth, Defect Structure, and Dynamical Behavior of Nanostructured Materials

J.G. Amar The Boeing Company, Charleston, SC
Aryal, Puruswottam 2014 August

Optical and Photovoltaic Properties of Copper Indium-Gallium
Diselenide Materials and Solar Cells

R. W. Collins ÌýProcess Engineer, Global Solar Energy, Tucson, AZ
Roehl, Jason 2014 May S. Khare ÌýMidwest MicroDevices
Khanal, Rajendra Raj 2014 May M. Heben Assistant Professor of Physics, University of Pittsburgh, Johnstown
Mahabaduge, Hasitha 2013 December ÌýA. D. Compaan Postdoctoral Research Fellow,
Dahal, Lila Raj 2013 May R. W. Collins Staff Scientist,
Sestak, Michelle 2012 August Spectroscopic Ellipsometry Studies of CdTe/CdS Thin Films and Photovoltaic Devices R. W. Collins Applications Scientist, HORIBA Scientific, Edison NJ
Nawarange, Amruta 2011 A. D. Compaan Research Scientist, NCPRE,ÌýIIT,Ìý Bombay, India
Paudel, Naba Raj 2011 A. D. Compaan Postdoctoral Research Fellow, Dept. of Physics and Astronomy (PVIC), U. Toledo
Little, Scott 2011 S. Marsillac Postdoctoral Research Associate, University of Arkansas
ÌýKryukov,Yevgen 2011 J.G. Amar Lecturer, Dept. of Physics and Astronomy, U. Toledo
ÌýSimon,Mark 2011 V. Karpov Postdoctoral Research Fellow, Dept. of Physics and Astronomy, U. Toledo
ÌýRanjan, Vikash 2011 S. Marsillac Pilkington, Toledo, OH
ÌýNardone, Marco 2011 V. Karpov Assistant Professor, Dept. of Environmental Sciences, Bowling Green State University
ÌýChen, Jie 2010 R. W. Collins R&D Process Engineer, Guardian Industries Corp.
ÌýLi, Jian 2010 R. W. Collins Principal Scientist, Halliburton Industries
Khatri, Himal 2009 S. X. Marsillac PV Research Scientist, Ferro Corp., Vista, California
Vasko, Anthony 2009 August A. D. Compaan Postdoctoral Research Fellow, Dept. of Physics and Astronomy and Wright Center for PVIC, U. Toledo
Nandipati, Giridhar 2009 August J. G. Amar
Plotnikov, Victor 2009 August Fabrication of ultra-thin CdS/CdTe solar cells by magnetron sputtering A. D. Compaan PV Research Scientist,
Liyanage, Chinthaka 2008 December B. Ullrich (BGSU)
Attygalle, Dinesh 2008 December X. Deng Postdoctoral Research Associate, U. Toledo
Borovikov, Valery 2008 August Multi-scale Simulations of Thin-Film Metal Epitaxial Growth J. G. Amar
Cao, Xinmin 2008 August Development and Optimization of High-Efficiency Thin-Film Silicon Based Solar Cells Using VHF PECVD Techniques X. Deng Senior Engineer, Toledo, OH
Shi, Feng 2008 August J. G. Amar
Attygalle, Lilani 2008 May V. Karpov
Mitra, Mukut 2008 May V. Karpov Post-doctoral Researcher, Materials Science and Engineering, U. of Pennsylvania
Podraza, Nikolas 2008 May R. W. Collins Associate Professor, University of Toledo
Yang, Xiesen 2007 December X. Deng Research Scientist,
Parikh, Viral 2007 December A. D. Compaan Staff Scientist, First Solar, Perrysburg, OH
Liu, XiangXin 2005 December Extended X-ray Absorption Fine Structure (EXAFS) and Photoluminescence Studies of CdTe Material A. D. Compaan Research Assistant Prof., P&A Dept., of Pysics and Astronomy, U. of Toledo.
Drayton, Jennifer 2005 December Studies of rf sputtered ZnTe:N and CdS for photovoltaic applications A. D. Compaan Last at:Ìý
Du, Wenhui 2005 December X. Deng Research Scientist,
Chen, Yu-Sheng 2004 May Transferability of Electronic Structure of Four Energetic Materials by using Single Crystal and High Resolution X-ray Diffraction Experiments A. Pinkerton (UT, Chem.) Research Associate, Advanced Photon Source, Argonne National Lab.
Povolny, Henry 2003 May X. Deng Lam Research, Fremont CA
Yu, Jianguo 2003 August Multiscale Simulations of Thin-Film Growth J. G. Amar
Shvydka, Diana 2002 May Physical Characterization of CdTe/CdS Photovoltaics: Defects, Fields, and Micrononuniformities A. D. Compaan Assistant Professor in the Department of Radiation Oncology, The University of Toledo (Health Sciences Campus)Ìý
Matulionis, Ilvydas 2002 May Superstrate and Substrate Type CdTe Solar Cells and Monolithic Integration of Photovoltaic Modules A. D. Compaan
Grecu, Dan 1999 August Photoluminescence Study of Cu-doped CdTe and Related Stability Issues for CdS/CdTe Solar-Cell Devices A. D. Compaan