Perovskite Photoluminescence: Direct Observation of Halide Migration and its Effect on the Photoluminescence of Methylammonium Lead Bromide Perovskite Single Crystals (Adv. Mater. 43/2017)

In article number 1703451, direct evidence of bromine migration in CH3NH3PbBr3 single crystals under electric‐field cycles is reported by David P. Fenning and co‐workers, using nanoprobe X‐ray fluorescence. Photoluminescence mapping reveals that the crystal has higher emission in regions with higher...

Full description

Saved in:
Bibliographic Details
Published in:Advanced materials (Weinheim) 2017-11, Vol.29 (43), p.n/a
Main Authors: Luo, Yanqi, Khoram, Parisa, Brittman, Sarah, Zhu, Zhuoying, Lai, Barry, Ong, Shyue Ping, Garnett, Erik C., Fenning, David P.
Format: Article
Language:English
Subjects:
Bromine
halide migration
hybrid perovskites
Ion migration
Materials science
nanoprobe X‐ray fluorescence
nudged elastic band (NEB) and DFT computation
Optoelectronics
Photoluminescence
Single crystals
spatially resolved photoluminescence mapping
X-ray fluorescence
Citations: Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In article number 1703451, direct evidence of bromine migration in CH3NH3PbBr3 single crystals under electric‐field cycles is reported by David P. Fenning and co‐workers, using nanoprobe X‐ray fluorescence. Photoluminescence mapping reveals that the crystal has higher emission in regions with higher local bromine concentration. This link between ion migration and optoelectronic quality reveals the importance of controlling the nanoscale material chemistry to optimize performance in hybrid perovskite optoelectronic materials.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.201770314