Influence of La/Al ratio on the structure and spectroscopy of Tm3+ doped Al2O3-La2O3-SiO2 glasses
文献类型：期刊论文
| 作者 | Wang, Xue; Kang, Shuai; Fan, Shaohua; Wang, Shikai; Yu, Chunlei; Chen, Danping; Hu, Lili |
| 刊名 | J. Alloy. Compd.
 |
| 出版日期 | 2017 |
| 卷号 | 690页码:583 |
| 通讯作者 | woshiwsk@163.com ; hulili@siom.ac.cn |
| 英文摘要 | Lanthanum aluminosilicate (LAS) glasses with compositions (Tm2O3)(0.8)-(Al2O3)(12-x) (La2O3)(x)-(SiO2)(87.2) (x = 0, 1.2, 4.5 mol%; La/Al = 0, 1/9, 3/5) were prepared via a sol-gel method combined with high temperature sintering. The total amount of Al2O3 and La2O3 was 12 mol%. The effect of the La/Al ratio on the structure and spectroscopic properties of Tm3+ has been studied in detail. The structure of Tm-3+ doped LAS glasses was studied via Al-27 nuclear magnetic resonance (NMR), Fourier transform infrared spectroscopy (FTIR) and Raman spectroscopy. The spinning sideband patterns of the Al-27 NMR spectra showed that the population of Tm3+ ions in the vicinity of Al3+ decreased with an increase in the La2O3 concentration. FTIR and Raman spectra suggest that glasses with high La/Al ratios have less interconnected glass networks. The spectroscopic properties of Tm3+ ions were investigated via the Judd-Ofelt method using the measurement of absorption and emission spectra. Both the 1.8 mu m fluorescence intensity and the relative intensity of up-conversion emission of Tm3+ ions decrease with an increase in the La/Al ratio. This indicates reduced cross relaxation between Tm3+ ions in glass with a high La/Al ratio. We conclude that the spatial distribution homogeneity of Tm3+ ions in LAS glass improves when the La/Al ratio increases. (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:000385901300077 |
| 源URL | [http://ir.siom.ac.cn/handle/181231/28292]  |
| 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, Xue,Kang, Shuai,Fan, Shaohua,et al. Influence of La/Al ratio on the structure and spectroscopy of Tm3+ doped Al2O3-La2O3-SiO2 glasses[J]. J. Alloy. Compd.,2017,690:583. |
| APA | Wang, Xue.,Kang, Shuai.,Fan, Shaohua.,Wang, Shikai.,Yu, Chunlei.,...&Hu, Lili.(2017).Influence of La/Al ratio on the structure and spectroscopy of Tm3+ doped Al2O3-La2O3-SiO2 glasses.J. Alloy. Compd.,690,583. |
| MLA | Wang, Xue,et al."Influence of La/Al ratio on the structure and spectroscopy of Tm3+ doped Al2O3-La2O3-SiO2 glasses".J. Alloy. Compd. 690(2017):583. |
入库方式： OAI收割
来源：上海光学精密机械研究所
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