Reconfigurable Floating‐Gate van der Waals Phototransistor With Asymmetric Contact Geometries for Bio‐Inspired Multi‐Stage Visual Tasks

IF 9.7 1区物理与天体物理 Q1 OPTICS

Laser & Photonics Reviews Pub Date : 2026-10-16 DOI:10.1002/lpor.72081

Jun Xie, Shuang Ge, Xiaoning Zhao, Ya Lin, Zhongqiang Wang, Ye Tao, Haiyang Xu, Yichun Liu

{"title":"Reconfigurable Floating‐Gate van der Waals Phototransistor With Asymmetric Contact Geometries for Bio‐Inspired Multi‐Stage Visual Tasks","authors":"Jun Xie, Shuang Ge, Xiaoning Zhao, Ya Lin, Zhongqiang Wang, Ye Tao, Haiyang Xu, Yichun Liu","doi":"10.1002/lpor.72081","DOIUrl":null,"url":null,"abstract":"Bio‐inspired optoelectronic devices with in‐sensor neuromorphic computing capability are promising for artificial visual applications. However, the biological visual system possesses simultaneous sensing and multi‐stage processing capability through the retina and visual cortex. Different device types and materials are required to emulate specific visual functions, which will unavoidably pose complexity in integration and limit the scalability. Herein, we report a WSe 2 /h‐BN/Graphene reconfigurable floating‐gate van der Waals phototransistor (RFGPT) featuring a laterally asymmetric contact geometry. The device exhibits reconfigurable optoelectronic functionality via gate voltage modulation, including photodetection mode with bipolar photoresponse and optoelectronic synapse mode with short‐term memory. The RFGPT fulfills versatile neuromorphic image processing functions, including retina‐level pre‐processing (edge extraction) and cortex‐level processing (image recognition). The RFGPT provides a fundamental unit to develop artificial visual hardware with reduced fabrication complexity and enhanced scalability for efficient in‐sensor computing.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"292 1","pages":""},"PeriodicalIF":9.7000,"publicationDate":"2026-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Laser & Photonics Reviews","FirstCategoryId":"101","ListUrlMain":"https://doi.org/10.1002/lpor.72081","RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"OPTICS","Score":null,"Total":0}

引用次数: 0

Abstract

Bio‐inspired optoelectronic devices with in‐sensor neuromorphic computing capability are promising for artificial visual applications. However, the biological visual system possesses simultaneous sensing and multi‐stage processing capability through the retina and visual cortex. Different device types and materials are required to emulate specific visual functions, which will unavoidably pose complexity in integration and limit the scalability. Herein, we report a WSe 2 /h‐BN/Graphene reconfigurable floating‐gate van der Waals phototransistor (RFGPT) featuring a laterally asymmetric contact geometry. The device exhibits reconfigurable optoelectronic functionality via gate voltage modulation, including photodetection mode with bipolar photoresponse and optoelectronic synapse mode with short‐term memory. The RFGPT fulfills versatile neuromorphic image processing functions, including retina‐level pre‐processing (edge extraction) and cortex‐level processing (image recognition). The RFGPT provides a fundamental unit to develop artificial visual hardware with reduced fabrication complexity and enhanced scalability for efficient in‐sensor computing.

查看原文本刊更多论文

具有非对称接触几何的可重构浮栅范德华光电晶体管，用于生物启发的多阶段视觉任务

具有传感器内神经形态计算能力的生物启发光电器件在人工视觉应用中前景广阔。然而，生物视觉系统通过视网膜和视觉皮层具有同时感知和多阶段处理能力。为了模拟特定的视觉功能，需要不同的设备类型和材料，这将不可避免地带来集成复杂性并限制可扩展性。在此，我们报道了一种具有横向不对称接触几何结构的WSe 2 /h - BN/石墨烯可重构浮栅范德华光电晶体管（RFGPT）。该器件通过门电压调制具有可重构的光电功能，包括具有双极光响应的光电探测模式和具有短期记忆的光电突触模式。RFGPT实现了多种神经形态图像处理功能，包括视网膜级预处理（边缘提取）和皮层级处理（图像识别）。RFGPT为开发人工视觉硬件提供了一个基本单元，降低了制造复杂性，增强了可扩展性，实现了高效的传感器计算。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Laser & Photonics Reviews 物理-光学

CiteScore

14.20

自引率

5.50%

发文量

314

审稿时长

2 months

期刊介绍： Laser & Photonics Reviews is a reputable journal that publishes high-quality Reviews, original Research Articles, and Perspectives in the field of photonics and optics. It covers both theoretical and experimental aspects, including recent groundbreaking research, specific advancements, and innovative applications. As evidence of its impact and recognition, Laser & Photonics Reviews boasts a remarkable 2022 Impact Factor of 11.0, according to the Journal Citation Reports from Clarivate Analytics (2023). Moreover, it holds impressive rankings in the InCites Journal Citation Reports: in 2021, it was ranked 6th out of 101 in the field of Optics, 15th out of 161 in Applied Physics, and 12th out of 69 in Condensed Matter Physics. The journal uses the ISSN numbers 1863-8880 for print and 1863-8899 for online publications.