Perovskite Photosensors Integrated with Silver Resonant‐Cavity Color Filters Display Color Perception Beyond That of the Human Eye

Organic hybrid perovskite‐based photosensors generally display high responsivities and ultrafast response speeds, but their high dark currents with low detectivities have impeded their commercial applications. In this study, these problems are overcome by modifying the device structure and performin...

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Bibliographic Details
Published in:Advanced functional materials 2020-09, Vol.30 (36), p.n/a
Main Authors: Lu, Jong‐Hong, Cheng, Ming‐Tsang, Hsu, Hsiang‐Lin, Liu, Shun‐Wei, Chen, Chih‐Ping
Format: Article
Language:English
Subjects:
Color
Color vision
Dark current
Interlayers
Leakage current
Luminous intensity
Materials science
microcavity
optoelectronics
Perovskites
Photosensitivity
sensors
Thickness
White light
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Summary:Organic hybrid perovskite‐based photosensors generally display high responsivities and ultrafast response speeds, but their high dark currents with low detectivities have impeded their commercial applications. In this study, these problems are overcome by modifying the device structure and performing defect passivation of the perovskite. An inverted ITO/NiOx/perovskite/PCBM/BCP/Ag structure is applied to minimize the leakage current from the interlayers. In addition, a urea additive is embedded and the thickness of the perovskite layer is optimized, resulting in an ultralow dark current (
ISSN:1616-301X
1616-3028
DOI:10.1002/adfm.202002503