Fig. 9: Differential transient transmission spectroscopy for investigating charge carrier dynamics at perovskite/charge transport layer interface in PSC.
From: Advanced spectroscopic techniques for characterizing defects in perovskite solar cells
Transient transmission changes of MAPbI3 with and without different HTMs, pumped at 400 nm and probed at 720 nm on a picosecond, b sub-nanosecond, and c nanosecond time scales, respectively. d Differential transient transmission \({\triangle T}_{{{{{\mathrm{diff}}}}}}/T\) of MAPbI3 with and without different HTMs. Reproduced with permission from ref. 71, copyright (American Chemical Society, 2017).
