Synthesis, structure, and luminescence properties of a novel double-perovskite Sr2LaNbO6:Mn4+ phosphor

被引：75

作者：

Fu, Anjie ^{[1
]}

Guan, Anxiang ^{[1
]}

Yu, Dongyan ^{[2
]}

Xia, Siyu ^{[1
]}

Gao, Fangfang ^{[1
]}

Zhang, Xiaoshan ^{[1
]}

Zhou, Liya ^{[1
]}

Li, Yinghao ^{[1
]}

Li, Rongguan ^{[1
]}

机构：

[1] Guangxi Univ, Sch Chem & Chem Engn, Nanning 530004, Peoples R China

[2] Guangxi Univ Sicence & Technol, Coll Biol & Chem Engn, Liuzhou 545000, Peoples R China

来源：

MATERIALS RESEARCH BULLETIN | 2017年 / 88卷

关键词：

Perovskite; Red phosphor; Luminescence properties; Manganese; WHITE-LIGHT; ENERGY-TRANSFER; RED PHOSPHOR; COLOR CONVERTER; MN4+; PHOTOLUMINESCENCE; EMISSION; NA+; LI+; K+;

D O I：

10.1016/j.materresbull.2016.12.045

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A novel phosphor, Sr2LaNbO6:Mn4+, is synthesized by conventional solid-state reaction. The phosphor can be excited at 300-500 nm and emit a deep-red light. An emission band peak of 694 nm is observed from the spin-forbidden transition E-2 -> (4)A(2) of Mn4+ ions. Energy transfer between the Mn4+-Mn4+ pairs decreases fluorescence decay time from 0.815 ms to 0.512 ms. The resistance of luminescence against thermal impact is also investigated by emission spectroscopy at heating temperatures from 300 K to 500K. The calculated activation energy Delta E (similar to 0.345 eV) demonstrate good thermal stability of the phosphors. All these results indicate that the phosphor can be applied in white-light-emitting diodes. (C) 2017 Elsevier Ltd. All rights reserved.

引用

页码：258 / 265

页数：8

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