SHEN Jing-fei, WANG Hai-bo, HUANG Ru-xi, ZHU Yue-hua, ZHONG Jin-huan, JING Yan-jun. Surface Coating of BAM Phosphors with MgF<sub>2</sub>[J]. Chinese Journal of Luminescence, 2008,29(2): 264-268
SHEN Jing-fei, WANG Hai-bo, HUANG Ru-xi, ZHU Yue-hua, ZHONG Jin-huan, JING Yan-jun. Surface Coating of BAM Phosphors with MgF<sub>2</sub>[J]. Chinese Journal of Luminescence, 2008,29(2): 264-268DOI:
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 MgF
2
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 Eu
2+
didn't shift
which still remain the emission with wavelength about 450 nm. The surface component of BAM phosphors coated with MgF
2
was analyzed qualitatively by EDS. The emitting spectra of BAM phosphor particles coated without and with MgF
2
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MgF2
Keywords
BAM phosphorSol-GelcoatingMgF2
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Related Author
CHEN Wen-bin
LUO Wen-bin
ZOU Yang
XIE Li-juan
ZHANG Rui
CAI Jian-liang
MENG Jian-Xin
DONG Xiang-ting
Related Institution
School of Optoelectronic Information, Key Display Laboratory of Science and Technology of Sichuan, University of Electronic Science and Technology of China, Chengdu 610054, China
Institute of Nanochemistry, Jinan Univesity
Department of Chemistry, Jinan University
School of Chemistry and Environmental Engineering, Changchun University of Science and Technology
School of Materials Science and Engineering, China University of Mining and Technology