Selected Publications

Articles In Academic Journals

Year Title
2017 Optical simulation of external quantum efficiency spectra of cuin1- xgaxse2 solar cells from spectroscopic ellipsometry inputsJournal of Energy Chemistry.
2015 Characterization of Structure and Growth Evolution for nc-Si:H in the Tandem Photovoltaic Device ConfigurationIEEE Journal of Photovoltaics. 1516-1522.
2015 Effect of Molybdenum Deposition Temperature on the Performance of CuIn1-xGaxSe2 Based Solar Cells42nd IEEE Photovoltaic Specialists Conference.
2015 Effect of Substrate Temperature on Sputtered Molybdenum Film as a Back Contact for Cu(In,Ga)Se2 Solar Cells42nd IEEE Photovoltaic Specialists Conference.
2015 Optimization of Antireflective coatings for CIGS solar cells via Real Time Spectroscopic Ellipsometry42nd IEEE Photovoltaic Specialists Conference.
2014 Doped a-Si1-xCx:H:B as Contact Materials for Improved Performance CdTe Solar Cells40th IEEE Photovoltaic Specialists Conference.
2014 Effect of selenium evaporation rate on ultrathin Cu(In,Ga)Se2 films40th IEEE Photovoltaic Specialists Conference.
2014 Growth Studies and Characterization of Atomic Layer Deposited (Zn,Mg)S Thin Films for Solar cell Applications40th IEEE Photovoltaic Specialists Conference.
2014 Nitrogen Doped Chalcopyrites as Contacts to CdTe Photovoltaics40th IEEE Photovoltaic Specialists Conference.
2014 Non-destructive optical analysis of band gap profile, crystalline phase, and grain size for Cu(In,Ga)Se2 solar cells deposited by 1-, 2-, and 3-stage co-evaporationProgress in Photovoltaics: Research and Applications. 77-82.
2014 Real time spectroscopic ellipsometry for analysis and control of thin film polycrystalline semiconductor deposition in photovoltaicsThin Solid Films. 442-446.
2014 Real-Time, In-Line, and Mapping Spectroscopic Ellipsometry for Applications in Cu(In1-xGax)Se2 MetrologyIEEE Journal of Photovoltaics. 333-339.
2013 Comparative study of ZnS thin films deposited by CBD and ALD as a buffer layer for CIGS solar cell39th IEEE Photovoltaic Specialists Conference.
2013 Correlations between mapping spectroscopic ellipsometry results and solar cell performance for evaluations of nonuniformity in thin-film silicon photovoltaicsIEEE J. Photovolt.. 387-393.
2013 Large-area compositional mapping of Cu(In1?xGax)Se2 materials and devices with spectroscopic ellipsometryIEEE J. Photovolt.. 359-363.
2013 Multi layered anti-reflective coatings for ultra-thin CIGS solar cells39th IEEE Photovoltaic Specialists Conference.
2013 Multichannel Spectroscopic Ellipsometry for CdTe Photovoltaics: From Real-Time Monitoring to Large-Scale Mapping39th IEEE Photovoltaic Specialists Conference.
2013 Nitrogen Doped Chalcopyrites as Contacts to CdTe Photovoltaics39th IEEE Photovoltaic Specialists Conference.
2013 Optical Monitoring and Control of Three-Stage Coevaporated Cu(In1-xGax)Se2 by Real-Time Spectroscopic EllipsometryIEEE J. Photovolt.. 375-80.
2007 Analysis and optimization of thin film photovoltaic materials and device fabrication by real time spectroscopic ellipsometryProceedings of the SPIE Optics and Photonics Conference San Diego, USA, August 26-30 2007.

Conference Papers

Year Title
2017 CuIn1-xGaxSe2 solar cells with thin absorbers analyzed by spectroscopic ellipsometry: Insights into quantum efficiency and optical/collection losses
2017 High speed mapping of Ga compositional profiles in CuIn1-xGaxSe2 solar cells by spectroscopic ellipsometry