局域场增强石墨烯近红外光电探测器(特邀)  

Localized field enhanced graphene-based near-infrared photodetector(Invited)

作　　者：王军 何美誉 韩兴伟 韩超 韩嘉悦 Wang Jun;He Meiyu;Han Xingwei;Han Chao;Han Jiayue(School of Optoelectronic Science and Engineering,University of Electronic Science and Technology of China,Chengdu 610054,China)

机构地区：[1]电子科技大学光电科学与工程学院,四川成都610054

出　　处：《红外与激光工程》2022年第1期139-146,共8页Infrared and Laser Engineering

基　　金：国家自然科学基金(61922022,62175026)。

摘　　要：近红外光电探测器在夜视监控、生物医学、环境监测等诸多领域有广泛应用。由于二维石墨烯材料具有独特性质(零带隙结构、高载流子迁移率、功函数可调)使其在红外探测领域具有巨大潜质。为了充分利用石墨烯的优势,并克服其吸收率低、暗电流噪声大的不足,研究者利用局域场调控设计混合结构以提高红外探测器性能。文中总结了局域场增强石墨烯近红外光电探测器的研究成果,介绍了单吸收层局域场增强器件并分析基于不同类型感光材料器件的优缺点,进一步介绍了双吸收层局域场增强器件,对笔者所做的双吸收层器件中电流极性等相关研究进行了简述。最后对局域场增强探测器相关功能拓展领域研究进行了简介,对该类器件的发展趋势进行了简要的总结和展望。Near-infrared photodetectors are widely used in night vision,biomedical,environmental monitoring and many other fields.Two-dimensional graphene have great potential in infrared detection due to their unique properties(Zero band gap structure,high carrier mobility,adjustable work function).In order to take full advantage of graphene and overcome its disadvantages of low absorption and high noise,the researchers designed the hybrid structure using localized modulation of grating to improve the infrared detector performance.The research results of localized field enhanced graphene-based near-infrared photodetector were summarized,the localized field enhanced devices with single absorption layer was introduced,and the advantages and disadvantages of devices based on different types of photosensitive materials were analyzed.The double absorption layer local field enhanced device was further introduced,and the current polarity and other related researches of the research group in the field of double absorption layer devices was summarized.Finally,the research on the extension of the localized field enhanced detector was introduced,and the development trend of this kind of devices was briefly summarized and prospected.

关 键 词：红外探测器 局域场 光栅效应 石墨烯 

分 类 号：TN362[电子电信—物理电子学]