简介概要

Effect of fluxes on structure and luminescence properties of Y3Al5O12:Ce3+ phosphors

来源期刊:Journal of Rare Earths2009年第2期

论文作者:徐时清 孙柳正 张颖 鞠海东 赵士龙 邓德刚 王焕平 王宝玲

文章页码:327 - 329

摘    要:Ce3+-activated yttrium aluminum garnet (YAG) was prepared by the solid-state reaction, in which H3BO3, LiF, NaF, KF and BaF2 were used as the fluxes. The effect of fluxes on optical properties of phosphors was studied in detail, especially the fluxes of alkali fluorides, which could enhance the emission intensity and change the wavelength of emission peaks. Among these YAG:Ce phosphors, the phosphor sintered with H3BO3 and NaF exhibited the strongest emission. The emission peaks of phosphors prepared with fluxes from LiF to KF were shifted to long wavelength. The effect of NaF concentration on the emission intensity of YAG:Ce was also investigated. The value of emission intensity reached the maximum when the concentration of NaF was 0.5%.

详情信息展示

Effect of fluxes on structure and luminescence properties of Y3Al5O12:Ce3+ phosphors

徐时清,孙柳正,张颖,鞠海东,赵士龙,邓德刚,王焕平,王宝玲

摘 要:Ce3+-activated yttrium aluminum garnet (YAG) was prepared by the solid-state reaction, in which H3BO3, LiF, NaF, KF and BaF2 were used as the fluxes. The effect of fluxes on optical properties of phosphors was studied in detail, especially the fluxes of alkali fluorides, which could enhance the emission intensity and change the wavelength of emission peaks. Among these YAG:Ce phosphors, the phosphor sintered with H3BO3 and NaF exhibited the strongest emission. The emission peaks of phosphors prepared with fluxes from LiF to KF were shifted to long wavelength. The effect of NaF concentration on the emission intensity of YAG:Ce was also investigated. The value of emission intensity reached the maximum when the concentration of NaF was 0.5%.

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