Optical properties of Eu2+-doped strontium borate glasses containing F– and Li+ ions
来源期刊：Journal of Rare Earths2008年第4期
论文作者：黄彦林 张基完 王锡钢 姜传芳
文章页码：490 - 494
摘 要：In this experiment, strontium borate glasses were prepared using the conventional quenching method in air atmosphere. Optical absorption, photoluminescence excitation and emission spectra, X-ray excited luminescence （XEL）, and luminescence decay curve of the as-prepared glasses were investigated at room temperature. The as-prepared glasses had two kinds of Eu ions, i.e., Eu2+ and Eu3+. Compared with the reported results of strontium borate glasses, Eu2+ luminescence was enhanced in the studied strontium borate glasses coprepared with F–and Li+ ions. The coexisting of Li+ or F– in the borate glasses could create more negative defect VSr″ and stabilize Eu2+ ions, which might act as donor of electrons; For the Fdoping, the new center of B（O, F）4 （or BO3F） and BO2F2 units could be considered to be the distorted （BO4）, which were needed as a rigid framework to stabilize the divalent rare earth ions.
黄彦林，张基完，王锡钢，姜传芳
摘 要：In this experiment, strontium borate glasses were prepared using the conventional quenching method in air atmosphere. Optical absorption, photoluminescence excitation and emission spectra, X-ray excited luminescence （XEL）, and luminescence decay curve of the as-prepared glasses were investigated at room temperature. The as-prepared glasses had two kinds of Eu ions, i.e., Eu2+ and Eu3+. Compared with the reported results of strontium borate glasses, Eu2+ luminescence was enhanced in the studied strontium borate glasses coprepared with F–and Li+ ions. The coexisting of Li+ or F– in the borate glasses could create more negative defect VSr″ and stabilize Eu2+ ions, which might act as donor of electrons; For the Fdoping, the new center of B（O, F）4 （or BO3F） and BO2F2 units could be considered to be the distorted （BO4）, which were needed as a rigid framework to stabilize the divalent rare earth ions.
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