Photonics and optoelectronics of 2D metal-halide perovskites

Xiang Qi, Yupeng Zhang, Qingdong Ou, Son Tung Ha, Cheng Wei Qiu, Han Zhang, Yi Bing Cheng, Qihua Xiong, Qiaoliang Bao

Research output: Contribution to journalReview ArticleResearchpeer-review

122 Citations (Scopus)


In the growing list of 2D semiconductors as potential successors to silicon in future devices, metal-halide perovskites have recently joined the family. Unlike other conversional 2D covalent semiconductors such as graphene, transition metal dichalcogenides, black phosphorus, etc., 2D perovskites are ionic materials, affording many distinct properties of their own, including high photoluminescence quantum efficiency, balanced large exciton binding energy and oscillator strength, and long carrier diffusion length. These unique properties make 2D perovskites potential candidates for optoelectronic and photonic devices such as solar cells, light-emitting diodes, photodetectors, nanolasers, waveguides, modulators, and so on, which represent a relatively new but exciting and rapidly expanding area of research. In this Review, the recent advances in emerging 2D metal-halide perovskites and their applications in the fields of optoelectronics and photonics are summarized and insights into the future direction of these fields are offered.

Original languageEnglish
Article number1800682
Number of pages16
Issue number31
Publication statusPublished - 2 Aug 2018


  • 2D materials
  • hybrid perovskites
  • nanolasers
  • optoelectronics
  • photonics

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