Local Environment Study of Eu3+ Doped KGd2F7 by Site-Selective Spectroscopy

被引：2

作者：

Qin, Yanguang ^{[1
]}

Wei, Xiantao ^{[1
,2
]}

Wen, Jun ^{[3
]}

Chen, Yonghu ^{[1
]}

Yin, Min ^{[1
]}

机构：

[1] Univ Sci & Technol China, Dept Phys, Anhua 230026, Peoples R China

[2] Univ Sci & Technol China, Sch Phys Sci, Ctr Phys Expt, Anhua 230026, Peoples R China

[3] Anqing Normal Univ, Sch Phys & Elect Engn, Anqing 246011, Peoples R China

来源：

JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | 2016年 / 16卷 / 04期

基金：

中国国家自然科学基金;

关键词：

KGd2F7:Eu3+; Site-Selective Spectroscopy; Site Symmetry; GLASS-CERAMICS; EMISSION; DOWNCONVERSION; NANOPARTICLES; DEPENDENCE;

D O I：

10.1166/jnn.2016.11811

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The site-selective spectra and decay curves at 20 K of Eu3+ ions doped KGd2F7 were measured to study the local environment of the Eu3+ sites. The experimental results show that Eu3+ ions occupy three types of sites in the KGd2F7 host. And Eu3+ ions in different types of sites exhibit quite distinct emission spectra and have remarkably different D-5(0) level decay lifetimes. Based on the intensity ratio of D-5(0) -> F-7(2,1) transitions of Eu3+ and the D-5(0) decay lifetimes in different types of sites, the correlation between the luminescent properties and the site symmetry is discussed.

引用

页码：3873 / 3876

页数：4

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