Temperature-dependent luminescent properties of Eu-Tb complexes synthesized in situ in gel glass -: art. no. 071907

被引:50
作者
Liu, Y [1 ]
Qian, GD [1 ]
Wang, ZY [1 ]
Wang, MQ [1 ]
机构
[1] Zhejiang Univ, Dept Mat Sci & Engn, State Key Lab Silicon Mat, Hangzhou 310027, Peoples R China
基金
中国国家自然科学基金;
关键词
D O I
10.1063/1.1864233
中图分类号
O59 [应用物理学];
学科分类号
摘要
The chelates of europium and terbium with hexafluoroacetylacetone (HFA) and triphenylphoshine oxide (TPPO), Eu/Tb(HFA)(3)(TPPO)(2), have been synthesized in situ in gel glasses with various concentrations of Eu3+ and Tb3+ ions. The photoluminescence spectra have been measured and the characteristic transitions of Tb3+ and Eu3+ have been observed. Due to the variance of energy transfer efficiencies from Tb3+ to Eu3+, the intensity ratios of europium luminescent band to terbium band vary remarkably with measurement temperatures. In addition, the Forster mechanism has been proved to be responsible for the energy transfer between Eu3+ and Tb3+. The materials doped with Eu/Tb(HFA)3(TPPO)2 are promising for being used as a temperature detector and thermal-sensitive probe of optical fiber sensor. (C) 2005 American Institute of Physics.
引用
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页码:1 / 3
页数:3
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