二维材料偏振响应光电探测

Detection of Polarized Light Using Two-Dimensional Atomic Materials

各向异性二维材料由于其晶体结构的特殊性,在电学或者光学性质(如光致发光光谱、拉曼光谱、光吸收谱和电导率等)上表现出各向异性。这些性质引起了研究人员的广泛关注,特别是在光电探测方面的研究进展非常迅速,为其在光电器件的设计和开发中提供了巨大的应用潜力。文章从本征偏振探测和结构改进两方面综述了近几年来各向异性二维材料在偏振光电探测领域的发展和成果。首先阐述了各向异性二维材料的晶体结构特点和各向异性的来源,然后介绍了基于这类材料制备的多种偏振敏感光电探测器,接着提出了各向异性二维材料在光电探测应用上的重要性,最后基于现状提出了其所面临的挑战及机遇。

Due to the special crystal structures,anisotropic two-dimensional materials exhibit anisotropy in electrical and optical properties such as photoluminescence spectra,Raman spectra,optical absorption spectra,and conductivity.These properties have aroused widespread concern in academic research,especially in the field of photodetection,which has provided great potential for the application in the design and development of optoelectronic devices.The recent development and achievements of anisotropic two-dimensional materials in optoelectronic devices are elaborated.Firstly,the crystal structure characteristics and the origin of anisotropy for anisotropic two-dimensional materials are summarized.Secondly,a variety of polarization-sensitive photodetectors based on anisotropic materials are introduced.Then,the importance of the application of anisotropic two-dimensional materials in photodetection is proposed.Finally,based on the present research,the challenges and opportunities faced by anisotropic two-dimensional materials are presented.