Co-precipitation synthesis and luminescence properties of K2TiF6:Mn4+ red phosphors for warm white light-emitting diodes

被引：30

作者：

Liao, Jinsheng ^{[1
]}

Nie, Liling ^{[1
]}

Zhong, Laifu ^{[1
]}

Gu, Qingjie ^{[1
]}

Wang, Qi ^{[1
]}

机构：

[1] Jiangxi Univ Sci & Technol, Sch Met & Chem Engn, Ganzhou 341000, Jiangxi, Peoples R China

来源：

LUMINESCENCE | 2016年 / 31卷 / 03期

基金：

中国国家自然科学基金;

关键词：

XRD; co-precipitation; photoluminescence; phosphor; PHOTOLUMINESCENCE PROPERTIES; LED APPLICATIONS; MECHANISM; TRANSITIONS; SPECTRA; RATIO;

D O I：

10.1002/bio.3026

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

K2TiF6:Mn4+ red phosphors with different Mn4+ doping concentrations were obtained using the co-precipitation method. X-Ray diffraction, scanning electron microscopy, Raman spectra, Fourier transform infrared spectroscopy, photoluminescence excitation and emission spectra and decay curves were used to characterize the properties of K2TiF6:Mn4+ phosphors. Under excitation at 470 nm, an intense red emission peak around 631 nm corresponding to the E-2(g)-(4)A(2) transition of Mn4+ was observed for 2.48 mol% K2TiF6:Mn4+ phosphors and was used as the optimum doping concentration. The excellent luminescent properties of K2TiF6:Mn4+ suggest that this material might be a promising red phosphor for generating warm white light in phosphor-converted white light-emitting diodes. Copyright (c) 2015 John Wiley & Sons, Ltd.

引用

页码：802 / 807

页数：6

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