Presentation Information
[15a-PA3-7]Photoelectric Conversion Process in Perovskite Solar Cells: Analysis using Light-Triggered Time Domain Reflectometry
〇(M1)Ryuya Inakawa1, Ryuichi Tokuyama1, Rikuto Matsumoto1, Yuto Ishimatsu1, Ruoxue Zhang1, Tatsuya Omori1, Masatoshi Sakai1 (1.Chiba Univ.)
Keywords:
light-triggered time domain reflectometry,perovskite solar cells,photoelectric conversion process
We observed the photoelectric conversion process in perovskite solar cells using light-triggered time domain reflectometry. Measurements performed under different excitation light intensities revealed that, the onset of the photocurrent occurs approximately 10 ns earlier under high excitation conditions. From an analysis of the TDT waveforms, we consider that this phenomenon originates from the rapid diffusion of a large number of photogenerated holes through the hole transport layer. In this presentation, we will discuss the photogenerated carrier dynamics from the onset of light irradiation up to 50 µs.