Fully Light‐Modulated Organic Artificial Synapse with the Assistance of Ferroelectric Polarization

Optoelectronic synapses integrating synaptic and sensing functions have great potential in visual information processing and neuromorphic computing. Here, an artificial optoelectronic synapse based on copper‐phthalocyanine (CuPc) and poly(vinylidene fluoridetrifluoroethylene) (P(VDF‐TrFE)) is report...

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Veröffentlicht in:Advanced electronic materials 2022-07, Vol.8 (7), p.n/a
Hauptverfasser: Ji, Rongxue, Feng, Guangdi, Jiang, Chunli, Tian, Bobo, Luo, Chunhua, Lin, Hechun, Tang, Xiaodong, Peng, Hui, Duan, Chun‐Gang
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container_issue 7
container_start_page
container_title Advanced electronic materials
container_volume 8
creator Ji, Rongxue
Feng, Guangdi
Jiang, Chunli
Tian, Bobo
Luo, Chunhua
Lin, Hechun
Tang, Xiaodong
Peng, Hui
Duan, Chun‐Gang
description Optoelectronic synapses integrating synaptic and sensing functions have great potential in visual information processing and neuromorphic computing. Here, an artificial optoelectronic synapse based on copper‐phthalocyanine (CuPc) and poly(vinylidene fluoridetrifluoroethylene) (P(VDF‐TrFE)) is reported. The fabricated two‐terminal device exhibits bidirectional responses to light pulses with different wavelengths, which endows the device the capability to implement both excitatory and inhibitory synaptic behaviors in an optical pathway. The introduction of P(VDF‐TrFE) greatly improves the performance of the device as an artificial synapse, because the ferroelectric polarization of P(VDF‐TrFE) can control the relaxation behavior of the device. After mimicking some basic functions of biological synapses, the device is successfully applied to simulate the action and relaxation process of nociceptors when suffering from external harmful stimuli. A two‐terminal organic synaptic device based on copper‐phthalocyanine and poly(vinylidene fluoridetrifluoroethylene) (P(VDF‐TrFE)) is fabricated to implement both excitatory and inhibitory synaptic behaviors in an optical pathway. The relaxation properties are controlled by the ferroelectric polarization of P(VDF‐TrFE). Furthermore, the device is successfully applied to simulate the action and relaxation process of nociceptors when suffering from external harmful stimuli.
doi_str_mv 10.1002/aelm.202101402
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subjects artificial synapses
ferroelectric polarization
full light modulation
optoelectronic devices
title Fully Light‐Modulated Organic Artificial Synapse with the Assistance of Ferroelectric Polarization
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