Preparation and Luminescence Characteristics of Nano BaHfO3:Ce3+ Powders Prepared by Citric Acid Chelating Process

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	Preparation and Luminescence Characteristics of Nano BaHfO3:Ce3+ Powders Prepared by Citric Acid Chelating Process
	Wang Huadong 1,2; Ma Weimin 2; Wen Lei 3; Yin Kai 1; Shen Shifei 1
刊名	RARE METAL MATERIALS AND ENGINEERING
	2009-08-01
卷号	38 期号:8 页码:1446-1449
关键词	scintillation ceramics citric acid sol-gel process BaHfO3:Ce3+ nano-powder luminescence characteristic
ISSN号	1002-185X
通讯作者	Ma Weimin(maweimin56@163.com)
英文摘要	Citric acid chelating method was used to prepare Ce3+ doped BaHfO3 nano-powder. TG-DTA, XRD and SEM were employed to characterize the powder. The excitation and emission spectra of the specimens were analyzed by the fluorescence photometer. Results show that BaHfO3:Ce3+ nanometer powder with high degree of crystallinity, nearly spherical morphology and 40 nm particle size could be synthesized after the precursor gel prepared under the condition of CA:EG=1:3 was calcined at 1050 degrees C for 2 h. The maximum relative intensities of the excitation spectra and emission spectra appeared for the BaHfO3:Ce3+ specimen with Ce3+ doped concentration of 0.9 mol%. The excitation spectrum has two relatively wide spectrum bands where there are maximum peak values at the wavelength of 393 nm and 445 nm, respectively. The emission spectra at lambda(ex)= 393 nm and lambda(ex)=445 nm also have two spectrum bands where exist maximum peak values at 530 nm and 590 nm, respectively, corresponding to 5d -> F-2(5/2) and 5d -> F-2(7/2) transitions of Ce3+ cation, respectively. The emission spectra at 393 nm and 445 nm are obviously different, because the 4f ground State of Ce3+ cation is formed by two energy levels, with the energy difference of about 2000 cm(-1).
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	NORTHWEST INST NONFERROUS METAL RESEARCH
WOS记录号	WOS:000269849400031
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/99086]
专题	金属研究所_中国科学院金属研究所
通讯作者	Ma Weimin
作者单位	1.Shenyang Univ, Shenyang 110044, Peoples R China 2.Shenyang Univ Chem Technol, Sch Mat Sci & Engn, Shenyang 110142, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Wang Huadong,Ma Weimin,Wen Lei,et al. Preparation and Luminescence Characteristics of Nano BaHfO3:Ce3+ Powders Prepared by Citric Acid Chelating Process[J]. RARE METAL MATERIALS AND ENGINEERING,2009,38(8):1446-1449.
APA	Wang Huadong,Ma Weimin,Wen Lei,Yin Kai,&Shen Shifei.(2009).Preparation and Luminescence Characteristics of Nano BaHfO3:Ce3+ Powders Prepared by Citric Acid Chelating Process.RARE METAL MATERIALS AND ENGINEERING,38(8),1446-1449.
MLA	Wang Huadong,et al."Preparation and Luminescence Characteristics of Nano BaHfO3:Ce3+ Powders Prepared by Citric Acid Chelating Process".RARE METAL MATERIALS AND ENGINEERING 38.8(2009):1446-1449.