A new red phosphor BaGeF6:Mn4+: hydrothermal synthesis, photo-luminescence properties, and its application in warm white LED devices

被引：147

作者：

Zhou, Qiang ^{[1
]}

Zhou, Yayun ^{[1
]}

Liu, Yong ^{[1
]}

Luo, Lijun ^{[1
]}

Wang, Zhengliang ^{[1
]}

Peng, Jinhui ^{[1
]}

Yan, Jing ^{[2
]}

Wu, Mingmei ^{[2
]}

机构：

[1] Yunnan Minzu Univ, Key Lab Comprehens Utilizat Mineral Resources Eth, Key Lab Resource Clean Convers Ethn Reg, Educ Dept Yunnan,Sch Chem & Biotechnol, Kunming 650500, Peoples R China

[2] Sun Yat Sen Zhongshan Univ, MOE Key Lab Bioinorgan & Synthet Chem, Sch Chem & Chem Engn, Guangzhou 510275, Guangdong, Peoples R China

来源：

JOURNAL OF MATERIALS CHEMISTRY C | 2015年 / 3卷 / 13期

基金：

中国国家自然科学基金; 高等学校博士学科点专项科研基金;

关键词：

K2SIF6MN4+ PHOSPHOR; EMITTING PHOSPHOR; LUMINESCENCE; MECHANISM; MN4+;

D O I：

10.1039/c4tc02956a

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this work, we report a new and efficient red phosphor BaGeF6:Mn4+ (denoted as BGFM) by hydrothermally etching BaCO3 and GeO2 in HF solution with an optimized KMnO4 concentration. The crystal structure and morphology were characterized by powder X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDS) in detail. The influence of synthesis conditions on its photo-luminescent (PL) properties has been investigated comprehensively. It can present broad adsorption and sharp emissions in blue and red ranges respectively. The white LED device made of a blue GaN chip merged with a YAG:Ce-BGFM mixture presents warmer white light than that merged with only one YAG:Ce component.

引用

收藏

页码：3055 / 3059

页数：5

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