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251017s2025 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202514968
|2 doi
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|a pubmed25n1602.xml
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|a (DE-627)NLM394200144
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|a (NLM)41104670
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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|a Deng, Weilong
|e verfasserin
|4 aut
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|a Ultrasensitive and Ultrafast Self-Powered Ultraviolet Photodetector Array for Solar-Blind and Weak-Light Imaging
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|c 2025
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Revised 17.10.2025
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|a published: Print-Electronic
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|a Citation Status Publisher
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|a © 2025 Wiley‐VCH GmbH.
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|a Self-powered ultraviolet (UV) photodetectors (PDs) based on wide bandgap semiconductors (WBGSs) and their heterostructures face challenges in ultrasensitive and ultrafast weak-light detection capabilities. In this work, an 8 × 8 UV photodetector array based on CuNiO2/SiC p-n heterojunctions is demonstrated to operate in both solar-blind and weak-light conditions. The device achieves a weak-light detection limit of 4.6 nW·mm-2, a fast response time of 45 ns, and a high responsivity of 104.2 mA·W-1 and a detectivity of 3.4 × 1012 Jones, outperforming self-powered UV PDs based on SiC and Ga2O3-based WBGSs and their heterostructures. This excellent performance of the device originates from the high interface quality, large built-in electric field, Fowler-Nordheim tunneling (FNT) of charge transport, and enhancing light absorption at the heterostructures. Moreover, the detector exhibits a low noise power density below 10-22 A2·Hz-1 and a high cutoff frequency of 5 kHz, enabling it to maintain high-contrast real-time reflection imaging capability under solar illumination
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|a Journal Article
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|a CuNiO2/SiC heterojunctions
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|a arrays
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|a self‐powered
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|a solar‐blind
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|a weak‐light
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|a Fan, Xiangyu
|e verfasserin
|4 aut
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|a Du, Yuxuan
|e verfasserin
|4 aut
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|a Ma, Shengyu
|e verfasserin
|4 aut
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|a Zhang, Hanxu
|e verfasserin
|4 aut
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|a Liu, Mengting
|e verfasserin
|4 aut
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|a Zhang, Hao
|e verfasserin
|4 aut
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| 700 |
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|a Chen, Shuo
|e verfasserin
|4 aut
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|a Fu, Qiang
|e verfasserin
|4 aut
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|a Zhang, Yumin
|e verfasserin
|4 aut
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|a Li, Yang
|e verfasserin
|4 aut
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|a Han, Siyu
|e verfasserin
|4 aut
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|a Wang, Yang
|e verfasserin
|4 aut
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|a Yao, Tai
|e verfasserin
|4 aut
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|a Wang, Xianjie
|e verfasserin
|4 aut
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| 700 |
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|a Song, Bo
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g (2025) vom: 17. Okt., Seite e14968
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnas
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| 773 |
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|g year:2025
|g day:17
|g month:10
|g pages:e14968
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|u http://dx.doi.org/10.1002/adma.202514968
|3 Volltext
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