Synthesis and luminescence properties of a novel double-perovskite Ca2ScTaO6:Mn4+ far-red phosphor used for plant growth lighting

被引：30

作者：

Liao, Jinsheng ^{[1
,2
]}

Wang, Minghua ^{[1
]}

Gong, Guoliang ^{[1
]}

Sun, Yijian ^{[1
]}

Huang, Haiping ^{[1
]}

Wen, He-Rui ^{[1
]}

Tu, Chaoyang ^{[1
]}

机构：

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

[2] Guo Rui Sci Innovat Rare Earth Funct Mat Co Ltd, Baotou 014030, Peoples R China

来源：

OPTICAL MATERIALS | 2020年 / 109卷

基金：

中国国家自然科学基金;

关键词：

Far-red phosphor; Mn4+; Luminescence; Plants growing lighting; PHOTOLUMINESCENCE PROPERTIES; EMITTING PHOSPHOR; HIGHLY EFFICIENT; ENERGY-TRANSFER; SITE OCCUPANCY; MN4+; EMISSION; ENHANCEMENT; CONVERTER; MECHANISM;

D O I：

10.1016/j.optmat.2020.110274

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this paper, a novel far-red tantalate phosphor Ca2ScTaO6:Mn4+ has been prepared by a high temperature solid state method. Upon 348 nm excitation, Ca2ScTaO6:Mn4+ phosphor showed a high-purity far-red emission at approximately 692 nm and Ca2ScTaO6: 0.4%Mn4+ with strongest luminescence performance was used as the optimum doping concentration. The concentration quenching process of Mn4+ in the Ca2ScTaO6 host is mainly due to quadrupole-quadrupole interactions. In addition, the activation energy (0.3686 eV) for the Ca2ScTaO6:Mn4+ phosphor can be obtained according to the temperature-dependence luminescence spectra. Finally, Ca2ScTaO6: 0.4%Mn4+ phosphor and a 365 nm light emitting diode (LED) chip are used to fabricate the LED device. The excellent luminescent properties of Ca2ScTaO6:Mn4+ suggest that this material could be a promising far-red phosphor for plants growing lighting.

引用

页数：8

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