The p–n–Se/CsPbBr 3 heterojunction photodetectors exhibit a high on/off ratio of 235, a fast rise/decay time of 18 ms/40 ms, a maximum responsivity of 47.6 mA W −1 and a high specific detectivity of 4.9 × 10 10 Jones at 550 nm under 0 V bias.
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Zheng et al. (2023) studied this question.
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