Issue 49, 2017

Photoluminescence properties of a novel red fluoride K2LiGaF6:Mn4+ nanophosphor

Abstract

Red K2LiGaF6:Mn4+ phosphors have been synthesized by the facile cation-exchange method. To optimize the optical properties, the phosphors were synthesized by using different reaction conditions. The highest luminescence intensity was increased 3.6 times for the Mn concentration of 1%, reaction temperature of 20 °C, and reaction time of 1 h. Replacement of the trivalent Al by Ga resulted in K2LiGaF6:Mn4+ having better photoluminescence properties than K2LiAlF6:Mn4+. Furthermore, the studies of the temperature-dependent emission intensity of the phosphors confirmed their good thermal stability, making them promising red phosphor candidates for white light-emitting diodes.

Graphical abstract: Photoluminescence properties of a novel red fluoride K2LiGaF6:Mn4+ nanophosphor

Supplementary files

Article information

Article type
Paper
Submitted
18 5月 2017
Accepted
07 6月 2017
First published
14 6月 2017
This article is Open Access
Creative Commons BY license

RSC Adv., 2017,7, 30588-30593

Photoluminescence properties of a novel red fluoride K2LiGaF6:Mn4+ nanophosphor

Y. Zhu, J. Yu, Y. Liu, M. G. Brik, L. Huang, T. Xuan and J. Wang, RSC Adv., 2017, 7, 30588 DOI: 10.1039/C7RA05635D

This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. You can use material from this article in other publications without requesting further permissions from the RSC, provided that the correct acknowledgement is given.

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