NDLI: Full-spectra hyperfluorescence cesium lead halide perovskite nanocrystals obtained by efficient halogen anion exchange using zinc halogenide salts

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Full-spectra hyperfluorescence cesium lead halide perovskite nanocrystals obtained by efficient halogen anion exchange using zinc halogenide salts

Content Provider	Royal Society of Chemistry (RSC)
Author	Li, Guopeng Zhang, Ting Zhang, Bin Wang, Xiaoyan Mou, Haohan Chang, Yajing Jiang, Yang
Copyright Year	2017
Abstract	Herein, we demonstrate a facile and less costly approach to deliberately modulate the composition of CsPbX3 (X = Cl, Br, I) NCs. Taking advantage of the highly ionic nature of perovskite structures, complete anion-exchange could be realized on the basis of directly synthesized CsPbBr3 employing zinc halogenide salts as anion source, which embraces the advantages of remarkably short exchange time and room-temperature reaction environment while maintaining the cubic phase for all CsPbX3 NCs, as well as accessing superior perovskite NC qualities with high stability and narrow full width at half maximum peak widths of 18 nm to 38 nm. By controlling the relative concentration of halide anions in a CsPbX3 NC-dispersed solution, their photoluminescence spectra can be finely tuned with ease covering the entire visible spectral region of 410–700 nm.
Starting Page	1165
Ending Page	1171
Page Count	7
File Format	HTM / HTML PDF
ISSN	14668033
Volume Number	19
Issue Number	8
Journal	CrystEngComm
DOI	10.1039/c6ce02314b
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Perovskite Halide Photoluminescence Ion Zinc
Content Type	Text
Resource Type	Article
Subject	Chemistry Condensed Matter Physics Materials Science

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