Two-photon absorption and emission in CsPb(Br/I)3 cesium lead halide perovskite quantum dots

Jingzhou Li; Saifeng Zhang; Hongxing Dong; Xinqiang Yuan; Xiongwei Jiang; Jun Wang; Long Zhang

doi:10.1039/C6CE01864E

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Two-photon absorption and emission in CsPb(Br/I)₃ cesium lead halide perovskite quantum dots†

Jingzhou Li,‡^ab Saifeng Zhang,‡^a Hongxing Dong,*^a Xinqiang Yuan,^a Xiongwei Jiang,^a Jun Wang^a and Long Zhang*^ac

Author affiliations

* Corresponding authors

^a Key Laboratory of Materials for High-Power Laser, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Science, Shanghai, China
E-mail: hongxingd@siom.ac.cn, lzhang@siom.ac.cn

^b University of Chinese Academy of Sciences, Beijing 100049, China

^c IFSA Collaborative Innovation Center, Shanghai Jiao Tong University, Shanghai 200240, China

Abstract

We present the nonlinear optical properties of CsPb(Br/I)₃ perovskite quantum dots (QDs) with high crystallinity. The perovskite QDs show better two-photon absorption response than the traditional metal chalcogenide QDs. And, the photoluminescence peak of the halogen vacancies in perovskite nanocrystals was experimentally observed for the first time.

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Article information

DOI: https://doi.org/10.1039/C6CE01864E
Article type: Communication
Submitted: 26 Aug 2016
Accepted: 09 Sep 2016
First published: 12 Sep 2016

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CrystEngComm, 2016,18, 7945-7949

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Two-photon absorption and emission in CsPb(Br/I)₃ cesium lead halide perovskite quantum dots

J. Li, S. Zhang, H. Dong, X. Yuan, X. Jiang, J. Wang and L. Zhang, CrystEngComm, 2016, 18, 7945 DOI: 10.1039/C6CE01864E

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