Title: Perovskite as the Next Era in Solar Cells with Novel Architectures
Speaker: Onur Ergen, University of California-Berkeley
Date/Time: April 6, 2017 / 11:00-12:00
Location: FENS L067
Perovskite as the Next Era in Solar Cells with Novel Architectures
Abstract: New class of materials called the hybrid perovskites has recently been discovered as an energy conversion layer to produce low-cost and high-efficient solar cells. However most of the perovskite-based architectures so far are selfsame and requires very intensive interface and solution engineering process. In this talk, I will present our new innovation titled “Graded Bandgap Perovskite Solar Cells”. This method has an entirely new architecture using an innovative nanomaterial stacking sequence that effectively maximizes the absorption of solar energy and reaches record-setting power conversion efficiency (~22%) with current densities (42.1mA/cm2) plus even without rigorous manufacturing requirements. Our novel technique further opens up new experimental dimensions for many other possibilities such as our explosion proof Li-ion batteries where I briefly introduce to conclude.
Biography: Onur Ergen is currently a Ph.D. candidate at the University of California, Berkeley, in Prof. Alex Zettl’s group, building next generation energy harvesting and energy conversion devices. He is also an Apple Inc. employee focusing on OLED display technology. Onur received MS and MA degrees respectively in Electrical Engineering and Physics, both from the UC Berkeley. His BA degree is in Physics from METU. During his graduate study, he was assistant to various Electrical Engineering and Physics courses and part time research engineer at SoloPower Inc., for two years, researching flexible thin film solar cells. He has authored over eleven journals including two Nature Materials articles and also holds two patent applications for Perovskite Solar Cells and Non-Explosive Lithium-ion batteries.