Synthesis and photoluminescence properties of a novel red phosphor SrLaGaO4:Mn4+

被引：44

作者：

Jiang, Chunyan ^{[1
,2
]}

Zhang, Xin ^{[1
,2
]}

Wang, Jia ^{[1
,2
]}

Zhao, Quanzhong ^{[3
]}

Wong, Ka-Leung ^{[4
]}

Peng, Mingying ^{[1
,2
]}

机构：

[1] South China Univ Technol, China Germany Res Ctr Photon Mat & Device, State Key Lab Luminescent Mat & Devices, Guangzhou, Guangdong, Peoples R China

[2] South China Univ Technol, Sch Mat Sci & Engn, Guangdong Prov Key Lab Fiber Laser Mat & Appl Tec, Guangzhou, Guangdong, Peoples R China

[3] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, State Key Lab High Field Laser Phys, Shanghai, Peoples R China

[4] Hong Kong Baptist Univ, Dept Chem, Kowloon Tong, Hong Kong, Peoples R China

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 2019年 / 102卷 / 03期

基金：

中国国家自然科学基金;

关键词：

Mn4+; phosphors; photoluminescence; properties; ENERGY-TRANSFER; PLANT-GROWTH; LUMINESCENCE; MN4+; EMISSION; FIELD;

D O I：

10.1111/jace.15981

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A novel Mn4+-doped strontium lanthanum gallate red phosphor SrLaGaO4:Mn4+ has been successfully prepared via the conventional solid-state reaction method. Phase purity, photoluminescence excitation/emission spectra, concentration quenching, decay curves, and temperature-dependent photoluminescence have been investigated systematically. SrLaGaO4:Mn4+ phosphor exhibits broad excitation band from 250 to 600 nm and emits intense red light centered at 716 nm arising from spin-forbidden transition, E-2 (4)A(2) of Mn4+. The optimal dopant concentration of Mn4+ is determined to be 0.2 mol%. Dipole-dipole interaction is supposed to be the mechanism of concentration quenching. The crystal-field strength Dq, the Racah parameters B and C, and the nephelauxetic ratio (1) of SrLaGaO4:Mn4+ have been calculated according to its luminescent spectra. Our systematic investigation on this new phosphor can provide a reference for the development of red-emitting phosphor.

引用

页码：1269 / 1276

页数：8

共 42 条

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