Research Interests
Condensed Matter Physics, Thin Film Photovoltaics, Thin Film Coatings for Optoelectronics, Oxide Perovskite Solar Cells, Quantum Nanostructures, Transparent photodetectors, 2D Materials.
Experience
October 2018-September 2021 INSPIRE Faculty, Solid State and Structural Chemistry Unit, Indian Institute of Science, Bangalore, INDIA.
August 2016-October 2018 Research Associate, Department of Physics, Indian Institute of Technology, New Delhi, INDIA.
“Study of passivation defect states in CZTS thin films and junctions”
August 2010-May 2012 Project Assistant, Department of Physics, Yogi Vemana University, Kadapa, INDIA.
“Development of low cost and environmentally benign absorber material for thin film heterojunction solar cells”
Education
Title: Photovoltaic Materials-Development of Earth Abundant Copper Zinc Tin Sulfide (CZTS) Thin Film Absorber and Heterojunction Solar Cells
Research Activity
I work on earth abundant inorganic absorbers (Cu-Zn-Sn-S, Cu-Sn(Sb)-S, Sn-S and perovskites) for photovoltaics, photoelectrochemical, photodetection applications. Thin film synthesis techniques would employ for growth, and characterized by different analytical techniques and theory as well
Technical Skills
X-ray diffractometer
UV-Vis-NIR, Raman spectrophotometer and Ellipsometry
Scanning Electron Microscope with X-ray analyzer
Atomic Force Microscope and X-ray Photoelectron Spectroscopy
Electrical conductivity and Hall effect measurements
Electrical probe station for I-V and C-V characterization of Solar cell
Significant Publications
Structural, Electronic and Optical properties of Cu2SnS3 photo absorber thin films: a combined experimental and computational study, Thin Solid Films 677(2019) 62-67
Journal of Materials Science: Materials in Electronics 28 (2017) 11702-11711
Applied Surface Science 396 (2017) 644-651
Physica B: Condensed Matter 449 (2014) 255-260
Journal of Renewable and Sustainable Energy 5 (2013) 03160
Books
Y.P.V.Subbaiah and Narayana Thota, Development of Earth Abundant CZTS Thin Film Absorber for Solar Cells, LAMBERT Academic Publishers, Germany, ISBN No: 978-620-0-00141-2 (2019)
Training Programs/Schools: 02: Conferences: 10; Workshops: 06 and counting
Honors and Awards
Visiting Faculty, Department of Electronic Materials Engineering, Research School of Physics, Australian National University, Australia (2022)
INSPIRE Faculty award by Department of Science and Technology, INDIA (2018)
Research Associate Fellowship from Indian Institute of Technology, Delhi, INDIA (2016)
Best Poster award in International Conference on Thin Films, National Physical Laboratory, New Delhi, (2017)
One of the article, Journal of Renewable and Sustainable Energy 5 (2013) 031606 has been in the 5th among top 10 hottest articles in the field of Photovoltaics (2012)
Teaching
Other Activities/Services
Frequent reviewer to Journal of Alloys and Compounds, Physica B, Thin Solid Films, Materials Science in Semiconductor Processing, Journal of Magnetism and Magnetic Materials, Journal of Physics D: Applied Physics, Nanotechnology
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