Author Affiliations
Abstract
1 CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, China
2 University of Chinese Academy of Sciences, Beijing 100049, China
3 Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, China
4 School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China
Two-dimensional (2D) perovskites are hybrid layered materials in which the inorganic lattice of an octahedron is sandwiched by organic layers. They behave as a quantum-well structure exhibiting large exciton binding energy and high emission efficiency, which is excellent for photonic applications. Hence, the cavity modulation and cavity devices of 2D perovskites are widely investigated. In this review, we summarize the rich photophysics, synthetic methods of different cavity structures, and the cavity-based applications of 2D perovskites. We highlight the strong exciton–photon coupling and photonic lasing obtained in different cavity structures. In addition, functional optoelectronic devices using cavity structures of 2D perovskites are also reviewed.
Photonics Research
2020, 8(11): 11000A72
1 山东师范大学物理与电子科学学院, 山东 济南 250358
2 国家纳米科学中心, 中国科学院纳米科学卓越创新中心, 中国科学院纳米标准与检测重点实验室, 北京 100190
3 北京大学工学院材料科学与工程系, 北京 100871
4 北京大学宽禁带半导体研究中心, 北京 100871
5 中国科学院大学, 北京 100049
二维过渡金属硫族化合物(TMDC)具有独特的优势,可以作为增益材料实现激光发射。TMDC材料固有的强库仑相互作用和弱的介电屏蔽效应使其具有大的激子结合能,从而有助于实现室温下稳定的激子发光,其高达6~7的折射率能够提高光约束能力,原子层表面没有悬空键,当与硅基半导体器件连接时,能够避免晶格失配。这些独特性质使其成为极具潜力的增益材料,可以与硅基微腔连接构成激光器件,原子级厚度和近红外的光谱辐射能使其与集成器件互联。本文从光学微腔的分类和激光原理,以及二维材料激光器等方面总结了近几年基于TMDC材料的激光器研究进展,并指出了当前存在的问题及展望了其发展前景。
激光器 半导体激光器 过渡金属硫族化合物(TMDC) 光学微腔 光与物质相互作用
