Luminescence properties of BaAl12O19:Tb,Ce and energy transfer between Ce3+,Tb3+
来源期刊：Journal of Rare Earths2010年第S1期
论文作者：肖林久 谢颖 贺明睿 陈永杰 李文泽 于维珂
文章页码：225 - 228
摘 要：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+.
肖林久1，谢颖1，贺明睿2，陈永杰1，李文泽1，于维珂1
1. Shenyang University of Chemical Technology,Key Laboratory of Rare-Earth Chemistry and Applying Liaoning Province2. Shenyang Supervision and Inspection Institute for Product Quality
摘 要：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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