Seminar: "How do Electrons Lose Their Energy in Silicon Photovoltaics?"
Presented by: Dr. Jan-Hendrik Poehls
Abstract:
Herein, I will present a new strategy to delineate the origins of energy loss in silicon photovoltaics using ultrafast electron diffraction. With this technique, electron-phonon coupling can be visualized in the sub-picosecond time scale and the mode-projected and momentum-resolved electron-phonon coupling strengths can be extracted. Investigations of structural dynamics on the sub-picosecond timescale can provide a richly detailed fundamental understanding of the non-equilibrium properties creating a new era in the understanding of light-matter interactions.
Short Bio:
Jan has joined the Department of Chemistry as an assistant professor at the University of New Brunswick in August 2022. He is currently the Fritz-Grein Science Research Recipient at UNB. His work focuses on the establishment of quantum materials in the renewable energy sector. Jan received his BSc and MSc in Materials Science and Engineering from Kiel University in Germany. For his PhD in Physics, he moved to Halifax where he worked under Dr. Mary Anne White. During his PhD, he was a visiting student at Caltech working with NASA’s Jet Propulsion Laboratory to find new thermoelectric materials for energy generation in space. Before joining UNB, Jan conducted postdoctoral research at the University of Alberta (Dr. Arthur Mar, Chemistry), McGill University (Dr. Bradley Siwick, Physics), and McMaster University (Dr. Yurij Mozharivskyj, Chemistry).
Category
Physics Seminars
Time
Location
Dunn 101