Interfacial Dedoping Engineering of PEDOT:PSS for High‐Performance Sn–Pb Perovskite NIR Photodetectors

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This study demonstrates improved performance of Sn–Pb perovskite photodetectors using dedoped PEDOT:PSS, indicating better interfacial passivation.

The dedoping strategy significantly enhances the performance of Sn–Pb perovskite photodetectors, reducing dark current density.
Devices with dedoped PEDOT:PSS achieve detectivity of 10^14 Jones from 380 to 960 nm, showcasing broad NIR responsiveness.
Interfacial passivation reduces nonradiative recombination, promoting superior perovskite crystallinity in photodetectors.
The method is efficient and offers a promising pathway for developing high-performance NIR photodetectors.

Shi et al. (2025) studied this question.

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This study demonstrates improved performance of Sn–Pb perovskite photodetectors using dedoped PEDOT:PSS, indicating better interfacial passivation.