Perceiving the Spectrum of Pain: Wavelength-Sensitive Visual Nociceptive Behaviors in Monolayer MoS2-Based Optical Synaptic DevicesClick to copy article linkArticle link copied!
- Jixiu LiJixiu LiKey Laboratory of UV-Emitting Materials and Technology of Ministry of Education, Northeast Normal University, Changchun 130024, ChinaMore by Jixiu Li
- Ying ZhouYing ZhouKey Laboratory of UV-Emitting Materials and Technology of Ministry of Education, Northeast Normal University, Changchun 130024, ChinaMore by Ying Zhou
- Yuanzheng Li*Yuanzheng Li*Email: [email protected]Key Laboratory of UV-Emitting Materials and Technology of Ministry of Education, Northeast Normal University, Changchun 130024, ChinaMore by Yuanzheng Li
- Chuxin YanChuxin YanKey Laboratory of UV-Emitting Materials and Technology of Ministry of Education, Northeast Normal University, Changchun 130024, ChinaMore by Chuxin Yan
- Xin-Gang ZhaoXin-Gang ZhaoKey Laboratory of UV-Emitting Materials and Technology of Ministry of Education, Northeast Normal University, Changchun 130024, ChinaMore by Xin-Gang Zhao
- Wei XinWei XinKey Laboratory of UV-Emitting Materials and Technology of Ministry of Education, Northeast Normal University, Changchun 130024, ChinaMore by Wei Xin
- Xiuhua XieXiuhua XieState Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, No. 3888 Dongnanhu Road, Changchun 130033, ChinaMore by Xiuhua Xie
- Weizhen Liu*Weizhen Liu*Email: [email protected]Key Laboratory of UV-Emitting Materials and Technology of Ministry of Education, Northeast Normal University, Changchun 130024, ChinaMore by Weizhen Liu
- Haiyang Xu*Haiyang Xu*Email: [email protected]Key Laboratory of UV-Emitting Materials and Technology of Ministry of Education, Northeast Normal University, Changchun 130024, ChinaMore by Haiyang Xu
- Yichun LiuYichun LiuKey Laboratory of UV-Emitting Materials and Technology of Ministry of Education, Northeast Normal University, Changchun 130024, ChinaMore by Yichun Liu
Abstract
Artificial visual nociceptors, which respond to noxious light by sending pain signals to the central nervous system, are a crucial sensory element in bionic visual systems. However, existing efforts focus on mimicking nociceptive responses to specific wavelengths of light, especially ultraviolet, with little consideration given to wavelength-sensitive nociceptive behaviors. Here, we have developed an optical synaptic device based on monolayer MoS2, featuring wavelength-sensitive visual nociceptive behaviors similar to human eyes. Except for typical synaptic functions and logical operations, essential behaviors of visual nociceptors are successfully emulated. More importantly, the device also realizes the emulation of the wavelength-sensitive nociceptor, that is, the shorter the wavelength of light the stronger the perception, and the secondary damage from long-wavelength light. Charge trapping and detrapping from interfacial defect-states, in conjunction with the band nesting effect, enable these wavelength-sensitive visual nociceptive behaviors of the devices. This work represents an important step toward endowing bionic vision systems with advanced visual capabilities.
Cited By
This article is cited by 2 publications.
- Jiafan Qu, Yadong Wei, Liang Zhao, Ruoxi Tan, Weiqi Li, Hongyan Shi, Yueling Zhang, Jianqun Yang, Bo Gao, Xingji Li. Defect-Mediated Exciton Localization and Relaxation in Monolayer MoS2. ACS Nano 2024, Article ASAP.
- Rongjian Ma, Hang Ren, Chuxin Yan, Yuanzheng Li, Jixiu Li, Wei Xin, Weizhen Liu, Xin-Gang Zhao, Lin Yang, Shengnan Feng, Haiyang Xu, Yichun Liu, Xinfeng Liu. Ultrahigh Photoresponsivity Enabled by Carrier Multiplication in a Self-Powered Solar-Blind Photodetector Based on the WS2/Graphene Heterostructure. ACS Photonics 2024, Article ASAP.
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