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Ultrastable Lead-Free Double Perovskite Photodetectors with Imaging Capability
Y.Li; Z.F.Shi; L.Z.Lei; S.Li; D.W.Yang; D.Wu; T.T.Xu; Y.Z.Tian
2019
发表期刊Advanced Materials Interfaces
ISSN2196-7350
卷号6期号:10页码:12
摘要Recently, the halide perovskites have increasingly received attention because of their superior capabilities in photodetector applications. However, the well-known instability and lead-toxicity are two major obstacles for their commercialization and practical applications. In this work, self-powered photodetectors based on solution-processed double perovskite Cs2AgBiBr6 films are fabricated for the first time. Owing to the high material integrity of Cs2AgBiBr6 and efficient interfacial charge transfer from perovskite to the underlying electron-quenching layer, the photodetector demonstrates excellent performances. Especially, the unencapsulated device demonstrates a good working stability in the open air. Typically it has the ability to endure a high temperature of 373 K for 10 h continuous running, demonstrating a good temperature resistance. In addition, after 3-month storage in open air, the photodetection capability of the device can almost be maintained. By deploying the photodetector as a point-like sensing pixel, high-resolution imaging patterns are acquired, which is the first report on imaging applications of lead-free perovskite photodetectors. The obtained results suggest that the lead-free double perovskite Cs2AgBiBr6 is potentially an attractive candidate to be applied in high-efficiency and stable photodetectors that can be employed in optical imaging.
关键词Cs2AgBiBr6,imaging,lead-free,photodetectors,stability,halide double perovskite,high-efficiency,solar-cells,thin-films,
DOI10.1002/admi.201900188
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收录类别SCI ; EI
语种英语
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文献类型期刊论文
条目标识符http://ir.ciomp.ac.cn/handle/181722/63238
专题中国科学院长春光学精密机械与物理研究所
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Y.Li,Z.F.Shi,L.Z.Lei,et al. Ultrastable Lead-Free Double Perovskite Photodetectors with Imaging Capability[J]. Advanced Materials Interfaces,2019,6(10):12.
APA Y.Li.,Z.F.Shi.,L.Z.Lei.,S.Li.,D.W.Yang.,...&Y.Z.Tian.(2019).Ultrastable Lead-Free Double Perovskite Photodetectors with Imaging Capability.Advanced Materials Interfaces,6(10),12.
MLA Y.Li,et al."Ultrastable Lead-Free Double Perovskite Photodetectors with Imaging Capability".Advanced Materials Interfaces 6.10(2019):12.
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