Synthesis of BaAl12O19:Mn2+ nanophosphors by a reverse microemulsion method and its photoluminescence properties under VUV excitation

CORC > 兰州化学物理研究所 > 中国科学院兰州化学物理研究所 > 固体润滑国家重点实验室

	Synthesis of BaAl12O19:Mn2+ nanophosphors by a reverse microemulsion method and its photoluminescence properties under VUV excitation
	Wang YH(王育华) ; Li F(李峰)
刊名	Journal of Luminescence
	2007
卷号	122-123 页码:866-868
关键词	Nanophosphors Reverse microemulsion BaAl12O19:Mn2+ VUV
ISSN号	0022-2313
通讯作者	王育华
中文摘要	BaAl12O19:Mn2+ nanoparticles were successfully synthesized by a reverse microemulsion method. The nanoparticles were characterized by transmission electron microscopy, X-ray diffraction and photoluminescence measurements. The results indicate that BaAl12O19:Mn2+ with spherical morphology can be synthesized at 1200 1C, which is about 300 1C lower than that of solid state reaction with size ranging from 40 to 100 nm. Monitored at 515 nm, the excitation spectra of as-prepared BaAl12O19:x Mn2+ (0.1pxp0.5) and bulk BaAl12O19:0.1 Mn2+ are similar. The bands at 130 and 156nm were observed and assigned to the optical absorption of AlO4 and AlO6 groups, respectively. The emission band position of nano-BaAl12O19:0.1 Mn2+ is 6 nm shorter than that of the bulk due to the low symmetry of crystal field near the surface of nano-BaAl12O19:Mn2+. The optimum emission intensity was obtained at x ¼ 0.2 of Mn2+ doping. Furthermore, the decay behaviors of nano-sized and bulk BaAl12O19:0.1 Mn2+ have also been discussed.
学科主题	材料科学与物理化学
收录类别	SCI
资助信息	the National High Technology Research and Development Program of China (No. 2003AA324020);National Natural Science Foundation of China (No. 50272026)
语种	英语
公开日期	2013-11-01
内容类型	期刊论文
源URL	[http://210.77.64.217/handle/362003/4052]
专题	兰州化学物理研究所_固体润滑国家重点实验室
推荐引用方式 GB/T 7714	Wang YH,Li F. Synthesis of BaAl12O19:Mn2+ nanophosphors by a reverse microemulsion method and its photoluminescence properties under VUV excitation[J]. Journal of Luminescence,2007,122-123:866-868.
APA	王育华,&李峰.(2007).Synthesis of BaAl12O19:Mn2+ nanophosphors by a reverse microemulsion method and its photoluminescence properties under VUV excitation.Journal of Luminescence,122-123,866-868.
MLA	王育华,et al."Synthesis of BaAl12O19:Mn2+ nanophosphors by a reverse microemulsion method and its photoluminescence properties under VUV excitation".Journal of Luminescence 122-123(2007):866-868.