High-Performance Flexible Photodetectors based on High-Quality Perovskite Thin Films by a Vapor–Solution Method

Wei Hu, Wei Huang, Shuzhen Yang, Xiao Wang, Zhenyu Jiang, Xiaoli Zhu, Hong Zhou, Hongjun Liu, Qinglin Zhang, Xiujuan Zhuang, Junliang Yang, Dong Ha Kim, Anlian Pan

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121 Scopus citations


Organometal halide perovskites are new light-harvesting materials for lightweight and flexible optoelectronic devices due to their excellent optoelectronic properties and low-temperature process capability. However, the preparation of high-quality perovskite films on flexible substrates has still been a great challenge to date. Here, a novel vapor–solution method is developed to achieve uniform and pinhole-free organometal halide perovskite films on flexible indium tin oxide/poly(ethylene terephthalate) substrates. Based on the as-prepared high-quality perovskite thin films, high-performance flexible photodetectors (PDs) are constructed, which display a nR value of 81 A W−1 at a low working voltage of 1 V, three orders higher than that of previously reported flexible perovskite thin-film PDs. In addition, these flexible PDs exhibit excellent flexural stability and durability under various bending situations with their optoelectronic performance well retained. This breakthrough on the growth of high-quality perovskite thin films opens up a new avenue to develop high-performance flexible optoelectronic devices.

Original languageEnglish
Article number1703256
JournalAdvanced Materials
Issue number43
StatePublished - 20 Nov 2017

Bibliographical note

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© 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim


  • flexible perovskite photodetectors
  • organometal halide perovskites
  • thin-film photodetectors


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