Control of Emission Color of High Quantum Yield CH3NH3PbBr3 Perovskite Quantum Dots by Precipitation Temperature

Advanced Science

He Huang¹  Andrei S. Susha¹  Stephen V. Kershaw¹  Tak Fu Hung² 

[1] Department of Physics and Materials, Science & Centre for Functional Photonics (CFP), City University of Hong Kong, Hong Kong, China;Department of Physics and Materials Science, City University of Hong Kong, Hong Kong, China

关键词: CH3NH3PbBr3;    perovskite;    photoluminescence;    precipitation;    quantum dots;   

DOI  :  10.1002/advs.201500194

来源: Wiley

【 摘 要 】

Abstract

Emission color controlled, high quantum yield CH₃NH₃PbBr₃ perovskite quantum dots are obtained by changing the temperature of a bad solvent during synthesis. The products for temperatures between 0 and 60 °C have good spectral purity with narrow emission line widths of 28–36 nm, high absolute emission quantum yields of 74% to 93%, and short radiative lifetimes of 13–27 ns.

【 授权许可】

CC BY   
© 2015 The Authors. Published by WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.