Study on photo-induced carrier dynamics of mixed perovskite solar cells exposed to atmospheric conditions using ultrafast transient absorption spectroscopy

Cheol Jo; Heejoo Kim; Do-Kyeong Ko

doi:10.1117/12.2676620

6 October 2023 Study on photo-induced carrier dynamics of mixed perovskite solar cells exposed to atmospheric conditions using ultrafast transient absorption spectroscopy

Cheol Jo, Heejoo Kim, Do-Kyeong Ko

Author Affiliations +

Proceedings Volume PC12660, Organic, Hybrid, and Perovskite Photovoltaics XXIV; PC126600V (2023) https://doi.org/10.1117/12.2676620
Event: SPIE Organic Photonics + Electronics, 2023, San Diego, California, United States

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Abstract

We studied CsFAMAPbBrI mixed perovskite solar cells with an ultrafast time-resolved transient absorption (TA) spectroscopy using pump-probe setup based on a femtosecond Ti:sapphire laser system(36 fs pulses centered at 805 nm, 1 kHz repetition rate). Frequency-doubled and supercontinuum lights were used as pump and probe beams, respectively. Our study presents a spectroscopic analysis of the dynamics of photo-induced charge carrier generation and decay in perovskite solar cells. We conducted a comparative study on perovskite solar cell devices with/without passivation layer, under various excitation pump intensities, and in a series of atmospheric exposures.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Cheol Jo, Heejoo Kim, and Do-Kyeong Ko "Study on photo-induced carrier dynamics of mixed perovskite solar cells exposed to atmospheric conditions using ultrafast transient absorption spectroscopy", Proc. SPIE PC12660, Organic, Hybrid, and Perovskite Photovoltaics XXIV, PC126600V (6 October 2023); https://doi.org/10.1117/12.2676620

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