Luminescence properties of BaAl12O19:Tb,Ce and energy transfer between Ce3+,Tb3+ |
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| Authors: | XIAO Linjiu XIE Ying HE Mingrui CHEN Yongjie LI Wenze YU Weike |
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| Affiliation: | 1(1.Shenyang University of Chemical Technology,Key Laboratory of Rare-Earth Chemistry and Applying Liaoning Province,Shenyang 110142,China;2.Shenyang Supervision and Inspection Institute for Product Quality,Shenyang 110022,China) |
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| Abstract: | BaAl12O19:Tb,Ce phosphors were prepared by sol-gel technique,the crystalline structures of samples characterized by XRD,and the luminescence properties and energy transfer between Ce3+ and Tb3+ were investigated.The results indicated that the emission intensity and the excitation wavelength range of Tb3+ increased when Ce3+ was doped.It demonstrated that the Ce3+ added in the BaAl12O19:Tb could deliver energy to Tb3+,and Ce3+ was not luminous by itself.The relative emission intensity of Tb3+ at wavelength of 548 nm was the strongest by Tb3+/Ce3+ ratio of 2:1,when excited at 310 nm,which was the characteristic adsorption wavelength of Ce3+. |
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| Keywords: | phosphors luminescence properties energy transfer Tb3+ Ce3+ rare earths |
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