Dr. Stefan Omelchenko

Alumni - Industry and Private Sector

Photovoltaics, Solar Fuels


Stefan received his PhD in Materials Science in 2018. His research interests include solar photovoltaics and solar fuels. He has investigated the fundamental charge transport in emerging photovoltaic materials and his current research focuses on developing high efficiency, earth-abundant tandem solar cells. He received a B.S. in Engineering Science and a B.S. in Physics with a minor in Mathematics from the Pennsylvania State University. He is currently working for Apple.

Available Publications

Impact of Semiconductor Band Tails and Band Filling on Photovoltaic Efficiency Limits

Joeson Wong, Stefan T. Omelchenko, and Harry A. Atwater
ACS Energy Lett. 2021, 6, 52−57 (2020) - Photovoltaics

Femtosecond time-resolved two-photon photoemission studies of ultrafast carrier relaxation in Cu2O photoelectrodes

Mario Borgwardt, Stefan T. Omelchenko, Marco Favaro, Paul Plate, Christian Höhn, Daniel Abou-Ras, Klaus Schwarzburg, Roel van de Krol, Harry A. Atwater, Nathan S. Lewis, Rainer Eichberger and Dennis Friedrich

Polycrystalline Cu2O photovoltaic devices incorporating Zn(O,S) window layers

Yulia Tolstova, Stefan T. Omelchenko, Raymond E. Blackwell, Amanda M. Shing, Harry A. Atwater
Solar Energy Materials and Solar Cells (2016) - Photovoltaics

Heteroepitaxial growth of Pt and Au thin films on MgO single crystals by bias-assisted sputtering

Yulia Tolstova, Stefan T. Omelchenko, Amanda M. Shing & Harry A. Atwater
Scientific Reports (2016) - Photovoltaics