Luminescence and energy transfer of color-tunable Lu2MgAl4SiO12:Eu2+,Ce3+,Mn2+ phosphors

被引：35

作者：

Ming, Zhiqiang ^{[1
]}

Zhao, Jing ^{[1
]}

Swart, Hendrik C. ^{[2
]}

Xia, Zhiguo ^{[1
,3
,4
]}

机构：

[1] Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing Municipal Key Lab New Energy Mat & Techno, Beijing 100083, Peoples R China

[2] Univ Free State, Dept Phys, POB 339, ZA-9300 Bloemfontein, South Africa

[3] South China Univ Technol, State Key Lab Luminescent Mat & Devices, Guangzhou 510641, Peoples R China

[4] South China Univ Technol, Inst Opt Commun Mat, Guangzhou 510641, Peoples R China

来源：

JOURNAL OF RARE EARTHS | 2020年 / 38卷 / 05期

基金：

中国国家自然科学基金;

关键词：

Rare earth ions; Energy transfer; Photoluminescence; Lu2MgAl4SiO12; THERMAL-STABILITY; RED PHOSPHORS; SINGLE-PHASE; MN2+; EU2+; EMISSION; CE3+; TB3+; PROGRESS; DESIGN;

D O I：

10.1016/j.jre.2019.12.012

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Energy transfer among the co-doped activators is an efficient route to achieve color-tunable emission in inorganic phosphors. Herein, photoluminescence tuning from blue to cyan has been achieved in the Lu2MgAl4SiO12:Eu2+,Ce3+,Mn2+ phosphors by varying the Ce3+ concentration with a fixed Eu2+ content. With the further introduction of a Mn2+-Si4+ couple into the host lattice, the emission color can be tuned to red through the energy transfer of Eu2+ and Mn2+. The luminescence properties and the energy transfer mechanism were studied in detail. The energy transfer from Eu2+ to Ce3+ is certified as a dipole-quadrupole interaction with the energy transfer efficiency of 41.4% and Eu2+ to Mn2+ belongs to a dipole-dipole interaction with the energy transfer efficiency of 94.3%. The results imply that this single-phased Lu2MgAl4SiO12:Eu2+,Ce3+,Mn2+ phosphor has a potential prospect for application in near-UV chip pumped white light emitting diodes. (C) 2020 Chinese Society of Rare Earths. Published by Elsevier B.V. All rights reserved.

引用

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页码：506 / 513

页数：8

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