Issue 44, 2018

Separation of mono-dispersed CH3NH3PbBr3 perovskite quantum dots via dissolution of nanocrystals

Abstract

Separation of mono-dispersed CH3NH3PbBr3 perovskite quantum dots (PeQDs) using the Ostwald ripening process during aging of the perovskite nanocrystals (PeNCs) in a colloidal solution is proposed for color-tunable PeQD synthesis. Monodispersed PeNCs with size ranging from 5 to 17 nm with a spherical or square shape have been successfully prepared. Photo-luminescence spectroscopy revealed the quantum confinement effect on the spherical small QDs.

Graphical abstract: Separation of mono-dispersed CH3NH3PbBr3 perovskite quantum dots via dissolution of nanocrystals

Supplementary files

Article information

Article type
Communication
Submitted
26 Jul 2018
Accepted
10 Sep 2018
First published
11 Sep 2018

CrystEngComm, 2018,20, 7053-7057

Separation of mono-dispersed CH3NH3PbBr3 perovskite quantum dots via dissolution of nanocrystals

K. Umemoto, M. Takeda, Y. Tezuka, T. Chiba, M. S. White, T. Inose, T. Yoshida, S. Asakura, S. Toyouchi, H. Uji-i and A. Masuhara, CrystEngComm, 2018, 20, 7053 DOI: 10.1039/C8CE01239C

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