Light-stimulated adaptive artificial synapse based on nanocrystalline metal-oxide film

被引：25
作者：
Balashov, Igor S. [1 ]
Chezhegov, Alexander A. [1 ]
Chizhov, Artem S. [2 ]
Anokhin, P. K.
Grunin, Andrey A. [1 ]
Anokhin, Konstantin, V [3 ,4 ]
Fedyanin, Andrey A. [1 ]
机构：
[1] Lomonosov Moscow State Univ, Fac Phys, Moscow 119991, Russia
[2] Lomonosov Moscow State Univ, Fac Chem, Moscow 119991, Russia
[3] Lomonosov Moscow State Univ, Inst Adv Brain Studies, Moscow 119991, Russia
[4] PK Anokhin Res Inst Normal Physiol, Moscow 125315, Russia
来源：
OPTO-ELECTRONIC SCIENCE | 2023年 / 2卷 / 10期
关键词：
neuromorphic photonics; synaptic adaptation; spiking neuron; neuromorphic computing; optoelectronic synaptic devises; nanocrystalline metal-oxide film; PLASTICITY; MODEL;
D O I：
10.29026/oes.2023.230016
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Artificial synapses utilizing spike signals are essential elements of new generation brain-inspired computers. In this paper, we realize light-stimulated adaptive artificial synapse based on nanocrystalline zinc oxide film. The artificial synapse photoconductivity shows spike-type signal response, long and short-term memory (LTM and STM), STM-to-LTM transition and paired-pulse facilitation. It is also retaining the memory of previous exposures and demonstrates spike-frequency adaptation properties. A way to implement neurons with synaptic depression, tonic excitation, and delayed accelerating types of response under the influence of repetitive light signals is discussed. The developed artificial synapse is able to become a key element of neuromorphic chips and neuromorphic sensorics systems.
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页数：12
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