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

Rongxue Ji; Guangdi Feng; Chunli Jiang; Bobo Tian; Chunhua Luo; Hechun Lin; Xiaodong Tang; Hui Peng; Chun Gang Duan

doi:10.1002/aelm.202101402

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

Rongxue Ji, Guangdi Feng, Chunli Jiang, Bobo Tian, Chunhua Luo, Hechun Lin, Xiaodong Tang, Hui Peng, Chun Gang Duan

School of Physics and Electronic Science

Research output: Contribution to journal › Article › peer-review

46 Scopus citations

Abstract

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.

Original language	English
Article number	2101402
Journal	Advanced Electronic Materials
Volume	8
Issue number	7
DOIs	https://doi.org/10.1002/aelm.202101402
State	Published - Jul 2022

Keywords

artificial synapses
ferroelectric polarization
full light modulation
optoelectronic devices

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10.1002/aelm.202101402

Cite this

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title = "Fully Light-Modulated Organic Artificial Synapse with the Assistance of Ferroelectric Polarization",

abstract = "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.",

keywords = "artificial synapses, ferroelectric polarization, full light modulation, optoelectronic devices",

author = "Rongxue Ji and Guangdi Feng and Chunli Jiang and Bobo Tian and Chunhua Luo and Hechun Lin and Xiaodong Tang and Hui Peng and Duan, \{Chun Gang\}",

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doi = "10.1002/aelm.202101402",

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AU - Ji, Rongxue

AU - Feng, Guangdi

AU - Jiang, Chunli

AU - Tian, Bobo

AU - Luo, Chunhua

AU - Lin, Hechun

AU - Tang, Xiaodong

AU - Peng, Hui

AU - Duan, Chun Gang

PY - 2022/7

Y1 - 2022/7

N2 - 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.

AB - 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.

KW - artificial synapses

KW - ferroelectric polarization

KW - full light modulation

KW - optoelectronic devices

UR - https://www.scopus.com/pages/publications/85127299413

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DO - 10.1002/aelm.202101402

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JO - Advanced Electronic Materials

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

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Keywords

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