Artificial optoelectronic synapse based on spatiotemporal irradiation to source-sharing circuitry of synaptic phototransistors

作     者：Seungho Song Changsoon Choi Jongtae Ahn Je-Jun Lee Jisu Jang Byoung-Soo Yu Jung Pyo Hong Yong-Sang Ryu Yong-Hoon Kim Do Kyung Hwang 

作者机构：Center for Opto-Electronic Materials and DevicesPost-Silicon Semiconductor InstituteKorea Institute of Science and Technology(KIST)SeoulRepublic of Korea School of Advanced Materials Science and EngineeringSungkyunkwan UniversitySuwonRepublic of Korea Center for SpintronicsPost-Silicon Semiconductor InstituteKorea Institute of Science and Technology(KIST)SeoulRepublic of Korea Division of Nanoscience&TechnologyKIST SchoolUniversity of Science and Technology(UST)SeoulRepublic of Korea School of Biomedical EngineeringKorea UniversitySeoulRepublic of Korea KU-KIST Graduate School of Converging Science and TechnologyKorea UniversitySeoulRepublic of Korea 

出 版 物：《InfoMat》 (信息材料（英文）)

年 卷 期：2024年第6卷第2期

页      面：131-141页

核心收录：

学科分类：080903[工学-微电子学与固体电子学] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

基　　金：Korea Institute of Science and Technology,Grant/Award Number:2E32242 KU-KIST Graduate School of Converging Science and Technology National Research Foundation of Korea,Grant/Award Number:2023R1A2C2003985 Institute for Information and Communications Technology Promotion,Grant/Award Number:2020-0-00841 

主　　题：amorphous oxide semiconductor analog processing artificial synapse neuromorphic optoelectronics 

摘      要：To overcome the intrinsic inefficiency of the von Neumann architecture,neuromorphic devices that perform analog vector–matrix multiplication have been highlighted for achieving power-and time-efficient data *** particular,artificial synapses,of which conductance should be programmed to represent the synaptic weights of the artificial neural network,have been intensively researched to realize neuromorphic ***,inspired by excitatory and inhibitory synapses,we develop an artificial optoelectronic synapse that shows both potentiation and depression characteristics triggered only by optical *** design of the artificial optoelectronic synapse,in which excitatory and inhibitory synaptic phototransistors are serially connected,enables these characteristics by spatiotemporally irradiating the phototransistor channels with optical ***,a negative synaptic weight can be realized without the need for electronic components such as *** such attributes,the artificial optoelectronic synapse is demonstrated to classify three digits with a high recognition rate(98.3%)and perform image preprocessing via analog vector-matrix multiplication.