Optical Spectroscopy of Single Colloidal CsPbBr3 Perovskite Nanoplatelets

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal

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Author(s)

  • Caixia Huo
  • Chee Fai Fong
  • Mohamed-Raouf Amara
  • Yuqing Huang
  • Bo Chen
  • Lingjun Guo
  • Hejun Li
  • Wei Huang
  • Carole Diederichs
  • Qihua Xiong

Detail(s)

Original languageEnglish
Pages (from-to)3673-3680
Journal / PublicationNano Letters
Volume20
Issue number5
Online published26 Mar 2020
Publication statusPublished - 13 May 2020

Abstract

Optically bright lead halide perovskite nanocrystals of different morphologies ranging from nanocubes to flat nanoplatelets to elongated nanowires have been reported. The morphology of the nanocrystals is expected to affect various properties such as the band edge energy and the electron-hole exchange interaction. However, aside from nanocubes, the investigation of optical properties in the lead halide perovskite nanocrystals of different morphologies at the single emitter level has been lacking. We have performed optical spectroscopy in single CsPbBr3 nanoplatelets and observed single photon emission without blinking. Furthermore, the photoluminescence emission exhibits excitonic fine structure peaks similar to what has been previously observed in nanocubes. Our work stimulates further investigations into the excitonic and quantum optics properties when the lateral size and morphology can be further controlled in lead halide perovskite nanocrystals.

Research Area(s)

  • exciton fine structure, nanoplatelets, Perovskite, photoluminescence, single photon emission

Citation Format(s)

Optical Spectroscopy of Single Colloidal CsPbBr3 Perovskite Nanoplatelets. / Huo, Caixia; Fong, Chee Fai; Amara, Mohamed-Raouf; Huang, Yuqing; Chen, Bo; Zhang, Hua; Guo, Lingjun; Li, Hejun; Huang, Wei; Diederichs, Carole; Xiong, Qihua.

In: Nano Letters, Vol. 20, No. 5, 13.05.2020, p. 3673-3680.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal