Transient current analysis in perovskite solar
Abstract
The characteristic timescale of the transient current decay is an indicator of the underlying charge transport and relaxation mechanisms in perovskite solar cells. In this experiment, a solar cell was subjected to a bias voltage in the dark. Upon removal of the bias voltage, we measured the resulting transient current, which provides insights into the dynamics of charge carriers within the solar cell. A transient current that persists longer than the electron-hole recombination timescale strongly indicates that mobile ionic species are the primary source of the response. By integrating this current, we obtained a measure of the accumulated charge.
Primary Faculty Mentor Name
Randall Headrick
Status
Graduate
Student College
College of Engineering and Mathematical Sciences
Program/Major
Physics
Primary Research Category
Physical Science
Transient current analysis in perovskite solar
The characteristic timescale of the transient current decay is an indicator of the underlying charge transport and relaxation mechanisms in perovskite solar cells. In this experiment, a solar cell was subjected to a bias voltage in the dark. Upon removal of the bias voltage, we measured the resulting transient current, which provides insights into the dynamics of charge carriers within the solar cell. A transient current that persists longer than the electron-hole recombination timescale strongly indicates that mobile ionic species are the primary source of the response. By integrating this current, we obtained a measure of the accumulated charge.
