Room‐Temperature Magneto‐Photoresponse in All‐2D Optoelectronic Devices for In‐Sensor Vision Systems

Author:

Zhu Wenxuan1,Sun Jiacheng2,Wang Yuyan2ORCID,Li Yuankun3,Bai Hua1,Wang Qian1,Han Lei1,Zhang Qingtian3,Wu Huaqiang23,Song Cheng1ORCID,Pan Feng1

Affiliation:

1. Key Laboratory of Advanced Materials (MOE) School of Materials Science and Engineering Tsinghua University Beijing 100084 P. R. China

2. Beijing National Research Center for Information Science and Technology Tsinghua University Beijing 100084 P. R. China

3. School of Integrated Circuits Tsinghua University Beijing 100084 P. R. China

Abstract

AbstractInterplay between magnetism and photoelectric properties introduces the effective control of photoresponse in optoelectronic devices via magnetic field, termed as magneto‐photoresponse. It enriches the application scenarios and shows potential to construct in‐sensor vision systems for artificial intelligence with gate‐free architecture. However, achieving a simultaneous existence of room‐temperature magnetism and notable photoelectric properties in semiconductors is a great challenge. Here, the room‐temperature magneto‐photoresponse is accomplished in all‐2D optoelectronic devices, employing 2D ferromagnet Fe3GaTe2 as the source and drain, with WSe2 forming the channel. The interplay between room‐temperature magnetism and photoelectric properties is realized by introducing the unique magneto‐band structure effect from 2D interface, resulting in magneto‐tunable charge transfer between Fe3GaTe2 and WSe2. The photocurrent in this 2D optoelectronic device exhibits robust response to both the direction and amplitude of external magnetic fields. Utilizing constructed 2D optoelectronic devices with magneto‐photoresponse, traditional gate‐controlled phototransistors are replaced and a prototype in‐sensor vision system with visual adaptation, significantly improving the recognition accuracy to over four times in low‐contrast environments is established. These findings pave a way for achieving high‐temperature magneto‐photoresponse, thereby guiding the construction of robust in‐sensor vision systems toward high performance and broad applications.

Funder

National Natural Science Foundation of China

Publisher

Wiley

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3