Mechanism of cluster dissolution of Yb-doped high-silica lanthanum aluminosilicate glass: Investigation by spectroscopic and structural characterization

CORC > 上海光学精密机械研究所 > 中国科学院上海光学精密机械研究所 > 高功率激光单元技术研发中心

	Mechanism of cluster dissolution of Yb-doped high-silica lanthanum aluminosilicate glass: Investigation by spectroscopic and structural characterization
	Wang, Shikai; Wang, Xue; Zhang, Ruili; Ren, Jinjun; Chen, Danping; Vezin, Herve; Fan, Shaohua; Hu, Lili; Yu, Chunlei
刊名	J. Alloy. Compd.
	2017
卷号	695 页码:2339
通讯作者	wangx29@126.com ; woshiwsk@163.com ; hulili@siom.ac.cn
英文摘要	To investigate clusters of Yb ions and the effectiveness of lanthanum co-doping in dispersing and isolating Yb ions in silica glass, Yb-doped high-silica lanthanum aluminosilicate (LAS) glass with compositions Yb2O3-Al2O3-La2O3-SiO2 was prepared by the solegel method combined with high temperature sintering. The glass structure and spectroscopic properties of Yb-doped high-silica LAS glass were studied in detail to explore the mechanism of cluster dissolution. Al-27 and Si-29 solid-state nuclear magnetic resonance (SSNMR) spectra were introduced to study the spatial distribution of the Yb ions in the glass. The spinning sideband patterns of the Al-27 and Si-29 NMR spectra showed that part of the Yb3+ ions in the vicinity of aluminium atoms transferred to Si ions with increasing La2O3 concentration. The results of two-dimensional hyperfine sublevel correlation (2D-HYSCORE) electron paramagnetic resonance (EPR) spectroscopy led to the conclusion that the vicinity of Yb3+ ions are mostly aluminum atoms for glass doped with Al and aluminum and silicon atoms for glass co-doped with Al and La. It was also found that Yb clusters exist in the form of Yb-O-Yb bonds in high-concentration Yb-doped silica glass and that co-doping with La can replace these bonds with Yb-O-La linkages to reduce the number of Yb3+ pairs. The fluorescence intensity and fluorescence lifetime of Yb increase steadily with increasing La2O3 concentration, which also indicates that the addition of La in silica glass can dissolve the Yb clusters. The results show that co-doping high-silica LAS glasses with La3+ ions is an ideal way to increase Yb solubility and decrease clustering. (C) 2016 Elsevier B.V. All rights reserved.
收录类别	SCI
资助信息	Chinese National Natural Science Foundation [61405215, 61475174]
WOS记录号	WOS:000391817600295
内容类型	期刊论文
源URL	[http://ir.siom.ac.cn/handle/181231/28301]
专题	上海光学精密机械研究所_高功率激光单元技术研发中心
作者单位	中国科学院上海光学精密机械研究所
推荐引用方式 GB/T 7714	Wang, Shikai,Wang, Xue,Zhang, Ruili,et al. Mechanism of cluster dissolution of Yb-doped high-silica lanthanum aluminosilicate glass: Investigation by spectroscopic and structural characterization[J]. J. Alloy. Compd.,2017,695:2339.
APA	Wang, Shikai.,Wang, Xue.,Zhang, Ruili.,Ren, Jinjun.,Chen, Danping.,...&Yu, Chunlei.(2017).Mechanism of cluster dissolution of Yb-doped high-silica lanthanum aluminosilicate glass: Investigation by spectroscopic and structural characterization.J. Alloy. Compd.,695,2339.
MLA	Wang, Shikai,et al."Mechanism of cluster dissolution of Yb-doped high-silica lanthanum aluminosilicate glass: Investigation by spectroscopic and structural characterization".J. Alloy. Compd. 695(2017):2339.