Influence of dispersant on Y2O3: Eu3+ powders synthesized by combustion method

	Influence of dispersant on Y2O3: Eu3+ powders synthesized by combustion method
	Wang, CN; Zhao, JB; Li, Y; Zhang, WP; Yin, M; Zhang WP(张慰萍)
刊名	JOURNAL OF RARE EARTHS
	2009
卷号	27 期号:6 页码:879-885
关键词	Y2O3 combustion PEG2000 rare earths
通讯作者	[Wang Chaonan ; Zhao Jiangbo ; Li Yong ; Zhang Weiping ; Yin Min] Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Peoples R China ; [Wang Chaonan ; Zhao Jiangbo ; Li Yong ; Yin Min] Univ Sci & Technol China, Dept Phys, Hefei 230026, Peoples R China ; [Zhang Weiping] Chinese Acad Sci, Beijing Synchrotron Radiat Facil, Inst High Energy Phys, Beijing 100039, Peoples R China
英文摘要	Y2O3: Eu3+ powders were synthesized by combustion method and the influence of dispersant was investigated. XRD analysis indicated that the particle size increased with a small amount of dispersant firstly and then decreased with a further increase of dispersant. The morphologies of the powders were studied by scanning electron microscopy (SEM) and high-resolution transmission electron microscopy (HRTEM). SEM images revealed that an appropriate amount of dispersant could reduce the agglomeration significantly. Due to the increase of specific surface area, the charge transfer bands in the excitation spectra showed a red shift with the decrease of particle size. The emission spectra displayed that the reduction of agglomeration could enhance the luminescent intensity greatly. The decay curves of the powders were single exponential and the lifetime of 612 nm emission increased with the decrease of particle size. The two deexcitation processes were discussed, and the increase of lifetime with decreased particle size resulted from the combined effects of surface defects and effective refractive index.
学科主题	Chemistry
类目[WOS]	Chemistry, Applied
研究领域[WOS]	Chemistry
原文出处	SCI
语种	英语
WOS记录号	WOS:000274040500001
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/238667]
专题	高能物理研究所_多学科研究中心
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Wang, CN,Zhao, JB,Li, Y,et al. Influence of dispersant on Y2O3: Eu3+ powders synthesized by combustion method[J]. JOURNAL OF RARE EARTHS,2009,27(6):879-885.
APA	Wang, CN,Zhao, JB,Li, Y,Zhang, WP,Yin, M,&张慰萍.(2009).Influence of dispersant on Y2O3: Eu3+ powders synthesized by combustion method.JOURNAL OF RARE EARTHS,27(6),879-885.
MLA	Wang, CN,et al."Influence of dispersant on Y2O3: Eu3+ powders synthesized by combustion method".JOURNAL OF RARE EARTHS 27.6(2009):879-885.