Controllable bandgap-gradient halide perovskite films via dip-coating and halide anion exchange for multispectral photodiodes with high performance

Yousheng Zou,Yichi Zhang,Jiaxin Liu, Xiaoxue Wu, Peng Yi,Zeyao Han

Journal of Materials Chemistry C（2023）

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摘要

Multispectral photodetectors based on one-dimensional bandgap-gradient halide perovskite films by combining dip-coating and halide anion exchange show continuously varying response cutoff band edges and a high I on / I off of 10 4 –10 6 .

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关键词

multispectral photodiodes,perovskite,halide anion exchange,bandgap-gradient,dip-coating

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