Luminescence enhancement of LiSrPO4:Eu2+ phosphor by Mg2+ ion addition

被引：5

作者：

Kamei S. ^{[1
]}

Hatsumori T. ^{[2
]}

Hasegawa T. ^{[3
]}

Ishigaki T. ^{[4
]}

Uematsu K. ^{[5
]}

Toda K. ^{[2
,5
]}

Sato M. ^{[5
]}

机构：

[1] Department of Sustainable Engineering, College of Industrial Technology, Nihon University, Narashino

[2] Graduate School of Science and Technology, Niigata University, Niigata

[3] Faculty of Agriculture and Marine Science, Kochi University, Nankoku city

[4] Tottori University Cross-Informatics Research Center, Tottori

[5] Department of Chemistry and Chemical Engineering, Niigata University, Niigata

来源：

Mater. Res. Innov. | 2019年 / 6卷 / 359-362期

基金：

日本学术振兴会;

关键词：

chemical synthesis; inorganic compounds; Optical materials; phosphors;

D O I：

10.1080/14328917.2018.1482650

中图分类号：

学科分类号：

摘要：

Mg-doped LiSrPO4:Eu2+ (Li(Sr, Mg)PO4:Eu2+) phosphors, in which some Sr2+ ions were replaced by Mg2+ ions, were prepared using a conventional solid-state reaction method. The crystal structure of the phosphors was hexagonal, which is the high-temperature phase of LiSrPO4, even though synthesis was carried out at a relatively low temperature of 900 °C. Fluorescence could be efficiently excited in the 220–400 nm ultraviolet region, and bright blue emission was produced with a peak at 448 nm. The emission intensity was higher than that for LiSrPO4:Eu2+ without Mg doping, and a lower Eu content (1 mol%) was required in order to reach the maximum intensity. These results indicate that the blue-emitting Li(Sr, Mg)PO4:Eu2+ phosphor is a promising candidate for phosphor-conversion white Light Emitting Diodes. © 2018, © 2018 Informa UK Limited, trading as Taylor & Francis Group.

引用

页码：359 / 362

页数：3

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