Issue 1, 2017

Ambience dependent photoluminescence reveals the localization and trap filling effects in CH3NH3PbI3−xClx perovskite films

Abstract

The photophysics of organolead trihalide perovskites are still not fully understood. Here we report that the photoluminescence (PL) lineshape, decay features, and intensity of solution-processed CH3NH3PbI3−xClx films are highly sensitive to the ambience. The radiative recombination actually consists of two decay channels corresponding to recombination of extended and localized states, respectively. The PL decay can be well described by a model considering the carrier localization, surface band bending, and trapping–detrapping of carriers.

Graphical abstract: Ambience dependent photoluminescence reveals the localization and trap filling effects in CH3NH3PbI3−xClx perovskite films

Supplementary files

Article information

Article type
Communication
Submitted
12 Oct 2016
Accepted
28 Nov 2016
First published
29 Nov 2016

J. Mater. Chem. C, 2017,5, 54-58

Ambience dependent photoluminescence reveals the localization and trap filling effects in CH3NH3PbI3−xClx perovskite films

J. Li, Q. Yu, B. Lu, H. He and Z. Ye, J. Mater. Chem. C, 2017, 5, 54 DOI: 10.1039/C6TC04411E

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