Relationship investigation of structure and properties of Nd3+: Ga2O3Al2O3-PbO-CaO via Raman, infrared, NMR and EPR spectroscopy

被引：14

作者：

Yue, Yu ^{[1
,2
]}

Shao, Chongyun ^{[1
,2
]}

Kang, Shuai ^{[1
,2
]}

Wang, Fan ^{[1
,2
]}

Wang, Xin ^{[1
]}

He, Dongbin ^{[1
]}

Chen, Wei ^{[1
]}

Hu, Lili ^{[1
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Key Lab Mat High Power Laser, Shanghai 201800, Peoples R China

[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 2018年 / 499卷

基金：

上海市自然科学基金;

关键词：

Local environments of rare-earth ions; Fluorescence; Glass structure; NMR; EPR; CALCIUM ALUMINATE GLASSES; PHOSPHATE; ABSORPTION; RESONANCE; SILICATE; GA-71; RATIO; IONS;

D O I：

10.1016/j.jnoncrysol.2018.07.041

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A detailed study structure and luminescence properties of Nd3+: Ga2O3-Al2O3-PbO-CaO laser glasses was conducted. The network structure was mainly dominated by Al (IV) or Ga (IV). With the increase of the Al2O3 content, the Al (IV) content increases, whereas the Ga (IV) content decreases. Hyperfine sublevel correlation (HYSCORE) spectra reveal Al-27 and Pb-207 weak hyperfine coupling, which indicates that these nuclei are in the second- or higher-order Nd3+ coordination sphere. No Ga-69 or Ga-71 signals can be detected in the three-pulse electron spin echo envelope modulation (3P-ESEEM) and HYSCORE spectra. For germanate glass, the local environment of the Nd3+ ions is characterized by the Pb ligand, for aluminum gallium glasses, the Nd3+ ions are surrounded by Al3+ and Pb2+ ions, and for aluminum glass, Nd3+ ions are mainly surrounded by Al-27 cations. The change in the structure and in the local environment of Nd3+ ions results in a change in the luminescence properties of glasses.

引用

页码：201 / 207

页数：7

共 41 条

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