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

Luo Yanqi | Zendy; Khoram Parisa | Zendy; Brittman Sarah | Zendy; Zhu Zhuoying | Zendy; Lai Barry | Zendy; Ong Shyue Ping | Zendy; Garnett Erik C. | Zendy; Fenning David P. | Zendy

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

Author(s) -

Luo Yanqi,

Khoram Parisa,

Brittman Sarah,

Zhu Zhuoying,

Lai Barry,

Ong Shyue Ping,

Garnett Erik C.,

Fenning David P.

Publication year - 2017

Publication title -

advanced materials

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 10.707

H-Index - 527

eISSN - 1521-4095

pISSN - 0935-9648

DOI - 10.1002/adma.201770314

Subject(s) - photoluminescence , materials science , halide , perovskite (structure) , bromine , nanoprobe , optoelectronics , nanoscopic scale , bromide , single crystal , crystal (programming language) , fluorescence , nanotechnology , inorganic chemistry , chemical engineering , optics , nanoparticle , crystallography , chemistry , metallurgy , physics , engineering , programming language , computer science

In article number 1703451 , direct evidence of bromine migration in CH 3 NH 3 PbBr 3 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.

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