Investigation of 2.9 μm luminescence properties and energy transfer in Tm3+/Dy3+ co-doped chalcohalide glasses

被引：16
|
作者：
Li Zhongxiu [1 ,2 ]
Xu Tiefeng [1 ]
Shen Xiang [1 ]
Dai Shixun [1 ]
Wang Xunsi [1 ]
Nie Qiuhua [1 ]
Zhang Xianghua [3 ]
机构：
[1] Ningbo Univ, Coll Informat Sci & Engn, Ningbo 315211, Zhejiang, Peoples R China
[2] Jiangxi Agr Univ, Coll Sci, Nanchang 330045, Peoples R China
[3] Univ Rennes 1, Lab Verres & Ceram, F-35042 Rennes, France
来源：
JOURNAL OF RARE EARTHS | 2011年 / 29卷 / 02期
基金：
中国国家自然科学基金;
关键词：
chalcohalide glasses; luminescence properties; energy transfer; Tm3+/Dy3+; rare earths; OPTICAL-PROPERTIES; CHALCOGENIDE; DY3+; INTENSITIES; IONS;
D O I：
10.1016/S1002-0721(10)60412-7
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
A series of chalcohalide glasses based on the composition of 0.9(Ge30Ga5Se65)-0.1CsI with different Tm3+/Dy3+-codoped ions concentrations were synthesized by melt-quenching technique. The absorption spectra and 2.9 mu m mid-infrared fluorescence spectra of glass samples under 800 nm laser excitation were measured. The results showed that Tm3+ was an efficient sensitizer, which could enhance the Dy3+: 2.9 mu m fluorescence intensity significantly. The effective energy transfer between the two rare-earth ions were mainly attributed to the resonance energy transfer from Tm3+:F-3(4) to Dy3+:H-6(11/2) level. Emission cross section of 2.9 mu m mid-infrared luminescence was also investigated according to Judd-Ofelt theory, sigma(e)=2.51x10(-20) cm(2).
引用
收藏
页码：105 / 108
页数：4
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