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Anomalous photoluminescence from K2LiInF6:Mn4+ phosphor

Abstract

A novel red emitting fluoride phosphor K2LiInF6:Mn4+ was synthesized by a cation exchange route. Despite its structural and morphological similarity with our previously reported materials (K2LiAlF6:Mn4+ and K2LiGaF6:Mn4+), an increased blue shift in its emission spectrum was observed. This anomalous phenomenon can be attributed to the nephelauxetic effect and the different interionic distances between the cations and ligands. Dependence of the Mn4+ emission intensity on its concentration was investigated to optimize the luminescent properties of the prepared phosphors and the structure and morphology of the phosphor is studied in detail.

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Article information


Submitted
10 Apr 2020
Accepted
06 May 2020
First published
15 May 2020

J. Mater. Chem. C, 2020, Accepted Manuscript
Article type
Paper

Anomalous photoluminescence from K2LiInF6:Mn4+ phosphor

Y. Zhu, L. Huang, M. Brik, X. Li, J. Zhong, J. Wang and K. L. Wong, J. Mater. Chem. C, 2020, Accepted Manuscript , DOI: 10.1039/D0TC01799J

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