神经形态工程学
钙钛矿(结构)
材料科学
突触
突触可塑性
长时程增强
神经促进
铁电性
促进
光电子学
神经科学
纳米技术
计算机科学
电介质
人工神经网络
人工智能
心理学
化学
生物化学
受体
结晶学
作者
Sunyoung Han,Tao Ma,Hui Li,Jiale Wu,Rong Liu,Ruirui Cao,Fumin Li,Huilin Li,Chong Chen
标识
DOI:10.1002/adfm.202309910
摘要
Abstract Halide perovskite is an emerging material with excellent optoelectronic properties, and also widely used in neuromorphic devices. Recently, halide perovskite has been redefined as exhibiting extraordinary multifunction, e.g., photoferroelectricity. Herein, this work employs a composite material consisting of halide perovskite and organic ferroelectric material to develop a new photoferroelectric synapse, and the photoferroelectricity and some synaptic plasticity are investigated. By the corresponding test analysis, it is demonstrated that photoelectricity and ferroelectricity can reinforce each other in this photoferroelectric composite material. Versatile synaptic behaviors of the nervous system, including paired‐pulse facilitation/paired‐pulse depression, post‐tetanic potentiation /post‐tetanic depression, and spiking‐rate‐dependent plasticity, are successfully simulated. Particularly, the classical conditioning in Pavlov's dog experiment can be replicated in the photoferroelectric synapse to realize the learning function of the brain, including memory loss and recovery. This work could be conducive to the application of multifunctional perovskite materials in synapse devices and neuromorphic computing.
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