Mn4+, Eu3+ Co-doped K0.3La1.233MgWO6: A Potentially Multifunctional Luminescent Material

被引：26

作者：

Long, Zheng ^{[1
]}

Xiao, Siguo ^{[1
]}

Yang, Xiaoliang ^{[1
]}

机构：

[1] Xiangtan Univ, Sch Phys & Optoelect, Xiangtan 411105, Hunan, Peoples R China

来源：

ACS APPLIED ELECTRONIC MATERIALS | 2020年 / 2卷 / 12期

基金：

美国国家科学基金会;

关键词：

phosphor; luminescence; plant growth LED; optical temperature sensing; wavelength detection; DOUBLE PEROVSKITES; HIGH-EFFICIENCY; RED PHOSPHOR; A-SITE; GROWTH;

D O I：

10.1021/acsaelm.0c00730

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Mn4+, Eu3+ co-doped magnesium lanthanum potassium tungstate (KLaMgWO6) phosphors have been prepared by a high-temperature solid-state reaction method. Partial substitution of K+ sites with La3+ and Li+ in the A site of KLaMgWO6 : Mn4+ results in 9.7 times and 7.4 times increase in the intensity of Mn" emission at 697 nm under blue light excitation, respectively. Strong emission of Eu" (613 nm) is observed in the Mn4+, Eu3+ co-doped K0.3La1.233MgWO6 without weakening the emission of Mn', and the total emission intensity of the Mn4+, Eu3+ co-doped sample is enhanced by about 40% as compared with that of K0.3La1.233MgWO6. More importantly, the fluorescence intensity ratio (I-Mn/I-Eu) in the Mn4+, Eu3+ co-doped K0.3La1.233MgWO6 phosphor increases monotonously not only with temperature but also with excitation wavelength within a certain range. The unique characteristics of the Mn4+, Eu3+ co-doped K0.3La1.233MgWO6 phosphor might provide a lot of possible application including plant growth lighting, optical temperature sensing, and wavelength detection.

引用

页码：3889 / 3897

页数：9

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