期刊
ADVANCED FUNCTIONAL MATERIALS
卷 31, 期 36, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adfm.202104327
关键词
electronic skin; in-sensor visual nociceptors; photogating transistors; vertical coplanar-multiterminal phototransistors; visual painful network systems
类别
资金
- Central South University Research Fund for Innovation-driven program [2019CX024]
- Natural Science Foundation of Hunan Province [2018JJ3652]
- China Postdoctoral Science Foundation [2018M632985, 2018T110839]
- National Natural Science Foundation of China [61804055]
- Shanghai Science and Technology Innovation Action Plan [19JC1416700]
- open Research Projects of Zhejiang Lab [2021MD0AB03]
A wearable artificial vision system with painful-perceptual abilities has been successfully developed for flexible electronic-skin applications using a novel vertical coplanar-multiterminal flexible transient photogating transistor network, which not only provides information security and wearability but also demonstrates visual pain-perceptual abilities.
Humans can clearly perceive surroundings efficiently while consuming little energy because of human intelligence and powerful vision system. Thus, it has been a long-sought dream for human beings to build such an energy-efficient artificial intelligent vision system with emerging devices. Unfortunately, a wearable optoelectronic device for visual nociceptor systems, regarded as a key bionic function to protect the vision, remains to be developed so far. Herein, using the vertical coplanar-multiterminal flexible transient photogating transistor network with a 3 nm ultrashort channel, a wearable artificial vision system with painful-perceptual abilities is successfully demonstrated for flexible electronic-skin (e-skin) applications. The device not only has the ability of ultrafast transient physical disappearance of only 60 s for information security but also establishes a flexible optical in-sensor visual nociceptor (ISVN) e-skin. The optical transition from short-time memory to long-time memory of visual memory is educed by a strong photogating effect, and the higher-level-graded optical painful alarm-sensing system is also demonstrated by this flexible artificial e-skin. Moreover, the proposed devices will achieve painful light sensitization under different spatiotemporal color patterns to avoid external secondary injuries. It provides a good opportunity for future intelligent e-skin taking advantage of its intriguing visual pain-perceptual abilities.
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