Bioinspired organic optoelectronic synaptic transistors based on cellulose nanopaper and natural chlorophyll-a for neuromorphic systems  

作　　者：Junyao Zhang Dapeng Liu Qianqian Shi Ben Yang Pu Guo Lu Fang Shilei Dai Lize Xiong Jia Huang 

机构地区：[1]Interdisciplinary Materials Research Center,School of Materials Science and Engineering,Frontiers Science Center for Intelligent Autonomous Systems,Tongji University,Shanghai 201804,People’s Republic of China [2]Translational Research Institute of Brain and Brain-Like Intelligence,Shanghai Fourth People’s Hospital Affiliated to Tongji University,School of Materials Science and Engineering,Tongji University,Shanghai 200434,People’s Republic of China

出　　处：《npj Flexible Electronics》2022年第1期286-295,共10页npj-柔性电子（英文）

基　　金：supported by the National Natural Science Foundation of China (62074111);the Science&Technology Foundation of Shanghai (19JC1412402,20JC1415600);Shanghai Municipal Science and Technology Major Project (2021SHZDZX0100);Shanghai Municipal Commission of Science and Technology Project (19511132101);the support of the Fundamental Research Funds for the Central Universities.

摘　　要：Inspired by human brains,optoelectronic synapses are expected as one of significant steps for constructing neuromorphic systems.In addition,intensive attention has been paid to biodegradable and biocompatible materials for developing green electronics.In this regard,environmentally friendly organic optoelectronic synaptic transistors based on wood-derived cellulose nanopaper(WCN)as dielectric/substrate and nature chlorophyll-a as photoactive material are demonstrated.Both WCN and chlorophyll-a are biocompatible and biodegradable materials from natural organisms.Versatile synaptic behaviors have been well mimicked by the modulation of both electrical and optical signals.More significantly,optical wireless communication is experimentally emulated and the information processing capability is also verified in pattern recognition simulation.Furthermore,the flexible synaptic transistors exhibit no apparent synaptic performance degradation even when the bending radius is reduced to 1 mm.Our work may develop a promising approach for the development of green and flexible electronics in neuromorphic visual systems.

关 键 词：OPTOELECTRONIC radius SYNAPTIC 

分 类 号：TN32[电子电信—物理电子学]