Optical and electrical properties of two-dimensional anisotropic materials

查看全文 作　　者：Ziqi [1,2]Zhou;Yu [1,2]Cui;Ping-Heng [1,2]Tan;Xuelu [1,2]Liu;Zhongming [1,2]Wei

机构地区：[1]State Key Laboratory of Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China;[2]Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China

出　　处：《Journal of Semiconductors》索引2019年第40卷第6期,共11页

基　　金：financially supported by the National Natural Science Foundation of China (Grant Nos. 61622406, 61571415, 11874350, 11434010);the Strategic Priority Research Program of Chinese Academy of Sciences (Grant No. XDB30000000) 摘　　要：Two-dimensional(2D) anisotropic materials, such as B-P, B-As, GeSe, GeAs, ReSe2, KP15 and their hybrid systems, exhibit unique crystal structures and extraordinary anisotropy. This review presents a comprehensive comparison of various 2D anisotropic crystals as well as relevant FETs and photodetectors, especially on their particular anisotropy in optical and electrical properties. First, the structure of typical 2D anisotropic crystal as well as the analysis of structural anisotropy is provided. Then, recent researches on anisotropic Raman spectra are reviewed. Particularly, a brief measurement principle of Raman spectra under three typical polarized measurement configurations is introduced. Finally, recent progress on the electrical and photoelectrical properties of FETs and polarization-sensitive photodetectors based on 2D anisotropic materials is summarized for the comparison between different 2D anisotropic materials. Beyond the high response speed, sensitivity and on/off ratio, these 2D anisotropic crystals exhibit highly conduction ratio and dichroic ratio which can be applied in terms of polarization sensors, polarization spectroscopy imaging, optical radar and remote sensing. 关键词：TWO-DIMENSIONAL ANISOTROPIC RAMAN SPECTRA polarization-sensitive PHOTODETECTORS

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Optical and electrical properties of two-dimensional anisotropic materials

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