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Graduate Student Seminar - 09/18/2015

"Charge Dynamics and Open-Circuit Voltage in Perovskite Solar Cells"

by Joe Garrett

Friday, September 18, 2015 -- 12:00 p.m.
Large Conference Room, 1207 Energy Research Facility

Advisor:  Assistant Professor Jeremy Munday

Perovskites rose to prominence in the past few years as a potential replacement for silicon solar cells because they are made from inexpensive components, are constructed just above room temperature, and have consistently increasing power conversion efficiencies. However, the charge transport mechanism within the perovskite material is still not well understood. By using Kelvin Probe Force Microscopy (KPFM) we map the surface potential of perovskite solar cells, both in dark and under illumination, in order to observe device electronic behavior with nanoscale spatial resolution. Furthermore, I will discuss time dependence of the voltage signal and nanoscale open circuit voltage maps.

For additional information about the IREAP Graduate Student Seminars, contact Joe Garrett, David Somers or Joe Murray.

Return to the Graduate Student Seminars schedule.