{"title":"基于 p-WSe2/n-Ta2NiS5 范德华异质结的红外人工视觉神经突触的设计与实现","authors":"Pengfei Hou, Shiwen Tan, Shuaizhi Zheng","doi":"10.1039/d4tc02854f","DOIUrl":null,"url":null,"abstract":"Two-dimensional heterojunctions, capable of capturing, processing, and memorizing optical signals, have vast potential for diverse applications in simulating visual neural synapses. However, a significant gap exists in the availability of two-dimensional heterojunctions capable of responding to infrared light, particularly enabling the realization of detection, sensing, and memory behavior under infrared light stimuli with wavelengths exceeding 1000 nm. In this report, a multipurpose infrared artificial visual neural synapse based on a p-WSe<small><sub>2</sub></small>/n-Ta<small><sub>2</sub></small>NiS<small><sub>5</sub></small> van der Waals heterojunction is designed. The heterojunction demonstrates self-powered infrared photodetection performance driven by the built-in electric field. Simultaneously, the tuning of energy band type through bias-induced band bending enables it to function as a photoelectric synapse. The heterojunction successfully simulates synaptic behaviors, with the perception wavelength extending into the infrared region (1064 and 1550 nm). Moreover, according to the synaptic plasticity of this heterojunction, a 3 × 3 visual image array is assumed to show image perception, image memory ability, and application prospects in information filtering and dynamic capture. This work not only offers an avenue to integrate multiple functions into a single heterojunction, but also provides the opportunity to implement advanced infrared artificial vision systems.","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":null,"pages":null},"PeriodicalIF":5.7000,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Design and implementation of an infrared artificial visual neural synapse based on a p-WSe2/n-Ta2NiS5 van der Waals heterojunction\",\"authors\":\"Pengfei Hou, Shiwen Tan, Shuaizhi Zheng\",\"doi\":\"10.1039/d4tc02854f\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Two-dimensional heterojunctions, capable of capturing, processing, and memorizing optical signals, have vast potential for diverse applications in simulating visual neural synapses. However, a significant gap exists in the availability of two-dimensional heterojunctions capable of responding to infrared light, particularly enabling the realization of detection, sensing, and memory behavior under infrared light stimuli with wavelengths exceeding 1000 nm. In this report, a multipurpose infrared artificial visual neural synapse based on a p-WSe<small><sub>2</sub></small>/n-Ta<small><sub>2</sub></small>NiS<small><sub>5</sub></small> van der Waals heterojunction is designed. The heterojunction demonstrates self-powered infrared photodetection performance driven by the built-in electric field. Simultaneously, the tuning of energy band type through bias-induced band bending enables it to function as a photoelectric synapse. The heterojunction successfully simulates synaptic behaviors, with the perception wavelength extending into the infrared region (1064 and 1550 nm). Moreover, according to the synaptic plasticity of this heterojunction, a 3 × 3 visual image array is assumed to show image perception, image memory ability, and application prospects in information filtering and dynamic capture. This work not only offers an avenue to integrate multiple functions into a single heterojunction, but also provides the opportunity to implement advanced infrared artificial vision systems.\",\"PeriodicalId\":84,\"journal\":{\"name\":\"Journal of Materials Chemistry C\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":5.7000,\"publicationDate\":\"2024-09-06\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Materials Chemistry C\",\"FirstCategoryId\":\"1\",\"ListUrlMain\":\"https://doi.org/10.1039/d4tc02854f\",\"RegionNum\":2,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Materials Chemistry C","FirstCategoryId":"1","ListUrlMain":"https://doi.org/10.1039/d4tc02854f","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
Design and implementation of an infrared artificial visual neural synapse based on a p-WSe2/n-Ta2NiS5 van der Waals heterojunction
Two-dimensional heterojunctions, capable of capturing, processing, and memorizing optical signals, have vast potential for diverse applications in simulating visual neural synapses. However, a significant gap exists in the availability of two-dimensional heterojunctions capable of responding to infrared light, particularly enabling the realization of detection, sensing, and memory behavior under infrared light stimuli with wavelengths exceeding 1000 nm. In this report, a multipurpose infrared artificial visual neural synapse based on a p-WSe2/n-Ta2NiS5 van der Waals heterojunction is designed. The heterojunction demonstrates self-powered infrared photodetection performance driven by the built-in electric field. Simultaneously, the tuning of energy band type through bias-induced band bending enables it to function as a photoelectric synapse. The heterojunction successfully simulates synaptic behaviors, with the perception wavelength extending into the infrared region (1064 and 1550 nm). Moreover, according to the synaptic plasticity of this heterojunction, a 3 × 3 visual image array is assumed to show image perception, image memory ability, and application prospects in information filtering and dynamic capture. This work not only offers an avenue to integrate multiple functions into a single heterojunction, but also provides the opportunity to implement advanced infrared artificial vision systems.
期刊介绍:
The Journal of Materials Chemistry is divided into three distinct sections, A, B, and C, each catering to specific applications of the materials under study:
Journal of Materials Chemistry A focuses primarily on materials intended for applications in energy and sustainability.
Journal of Materials Chemistry B specializes in materials designed for applications in biology and medicine.
Journal of Materials Chemistry C is dedicated to materials suitable for applications in optical, magnetic, and electronic devices.
Example topic areas within the scope of Journal of Materials Chemistry C are listed below. This list is neither exhaustive nor exclusive.
Bioelectronics
Conductors
Detectors
Dielectrics
Displays
Ferroelectrics
Lasers
LEDs
Lighting
Liquid crystals
Memory
Metamaterials
Multiferroics
Photonics
Photovoltaics
Semiconductors
Sensors
Single molecule conductors
Spintronics
Superconductors
Thermoelectrics
Topological insulators
Transistors