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

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

Year: 2016 Journal: CrystEngComm Vol: 18 (41)Pages: 7945-7949 Publisher: Royal Society of Chemistry

DOI: 10.1039/c6ce01864e

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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.

Keywords:

Quantum dot Perovskite (structure) Photoluminescence Halide Chalcogenide Materials science Crystallinity Nanocrystal Absorption (acoustics) Caesium Optoelectronics Photochemistry Inorganic chemistry Nanotechnology Chemistry Crystallography

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Perovskite Materials and Applications

Physical Sciences → Engineering → Electrical and Electronic Engineering

Nonlinear Optical Materials Research

Physical Sciences → Materials Science → Electronic, Optical and Magnetic Materials

Quantum Dots Synthesis And Properties

Physical Sciences → Materials Science → Materials Chemistry

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

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