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Energy transfer from Tb<sup>3+</sup> to Eu<sup>3+</sup> in zinc lead borate glass |
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| Authors: | JIANG Sha LI Li DUAN Changkui ZHOU Xianju YIN Min |
| Affiliation: | 1.Institute of Modern Physics,Chongqing University of Post and Telecom.,Chongqing 400065,China;2.Department of Physics,University of Science and Technology of China,Hefei 230026,China;3.Department of Biology and Chemistry,City University of Hong Kong,Tat Chee Avenue,Kowloon,Hong Kong S.A.R.,China) |
| Abstract: | In order to sensitize the luminescence of Eu3+ ions in heavy metal glass,zinc lead borate glass samples containing various concentrations of Eu3+ and Tb3+ ions were prepared to study the Tb3+ to Eu3+ non-radiative energy transfer phenomena.Energy level structures of Tb3+ and Eu3+ ions were plotted to show the excitation and energy transfer routes.Efficient energy transfer from Tb3+ to Eu3+ was observed and studied qualitatively in terms of doping concentrations.The sensitization turned out to be less effective than expected.Further studies to characterize the oxidation of Tb3+ into tetravalent state and to examine the mechanism of energy transfer are proposed. |
| Keywords: | energy transfer zinc lead borate glass luminescent spectrum Tb3+ Eu3+ rare earths |
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