Spectroscopic analysis uncovers hot carrier dynamics in stable triple halide perovskite solar cells under operational bias, highlighting practical thermalization pathways.
The hot carrier dynamics of thermally stable triple halide perovskite solar cells are investigated through power dependent transient absorption (TA) measurements. The TA measurements from both front and back sides of the solar cells were done to better understand the cooling processes. After extracting the PV parameters of the solar cells from the J-V characteristics, the TA measurements were repeated in-operando conditions and under varying external biases to monitor the thermalization of the carriers in more practical conditions.
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Afshari et al. (2024) studied this question.
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