发光学报2008，Vol.29Issue(2)：264-268,5.
BaMgAl10O17:Eu2+的MgF2表面包覆
Surface Coating of BAM Phosphors with MgF2
摘要
Abstract
In this work, BAM phosphors were coated with MgF2 by sol-gel process. The surface morphology and the crystal structure were characterized by SEM, IR and XRD, respectively. The results indicated that the surface of BAM phosphors were evenly coated by MgF2 and the crystal structure of the coated BAM phosphors remained the same as the uncoated samples, I.e. After surface treatment, the luminescence centre of Eu2+ didn't shift, which still remain the emission with wavelength about 450 nm. The surface component of BAM phosphors coated with MgF2 was analyzed qualitatively by EDS. The emitting spectra of BAM phosphor particles coated without and with MgF2 were investigated under 254.7 nm excitation. The results demonstrated that the initial luminance of coated BAM phosphors was lower than the uncoated samples. But after roasting at 550,650 ℃ for 30 min respectively, the luminescence degradation of the coated BAM phosphors was improved greatly.关键词
BAM荧光粉/溶胶-凝胶法/包覆/MgF2Key words
BAM phosphor/sol-gel/coating/MgF2分类
数理科学引用本文复制引用
沈静飞,王海波,黄如喜,朱月华,钟金环,井艳军..BaMgAl10O17:Eu2+的MgF2表面包覆[J].发光学报,2008,29(2):264-268,5.基金项目
江苏省科技攻关资助项目(BE2003009-2).The project supported by the plan of Jiangsu Province(BE2003009-2) （BE2003009-2）
