神经形态工程学
细菌视紫红质
材料科学
光电子学
神经促进
计算机科学
人工神经网络
兴奋性突触后电位
神经科学
人工智能
生物
抑制性突触后电位
膜
遗传学
作者
Wenqing Liu,Hailu Wang,Fangwu Liu,Yuanyuan Li,chaoxian Jia,Tangxin Li,Hangyu Xu,Mengyang Kang,Wenrui Wei,Jinshui Miao,Tao Zhang,Weida Hu
标识
DOI:10.1002/adfm.202302135
摘要
Abstract Neuromorphic hardware based on artificial synaptic devices has great potential to break the bottleneck of von Neumann architecture, which makes it possible to emulate the working mode of the human brain with low power consumption and high operation efficiency. However, current synaptic devices can barely detect photons and are bio‐incompatible for future all‐in‐one visual perception technology. Here, synaptic photoconductors based on an organic–inorganic hybrid structure, and composed of photosensitive bacteriorhodopsin protein layer and zinc oxide film are reported. The synaptic photoconductors demonstrate tunable synaptic plasticity with the modulation of the light illumination time and power intensity. The working mechanism of the photogating effect induced by the proton pump process of bR protein molecules is further investigated in detail. Assisting with these properties, the imaging memorization and preprocessing function are successfully emulated by the synaptic photoconductors. The prototype photosynaptic devices provide a unique opportunity to realize artificial synapses, enabling neuromorphic hardware.
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