Quantum efficiency and surface passivation effect of nanocrystalline Y2O3 : Eu3+

	Quantum efficiency and surface passivation effect of nanocrystalline Y2O3 : Eu3+
	Chen B. J.; Meng Q. Y.; Zhong H. Y.; Sun J. S.; Cheng L. H.; Peng Y.; Yu T.; Chen M.
	2008
发表期刊	Journal of Nanoscience and Nanotechnology
ISSN	1533-4880
卷号	8 期号:3 页码:1165-1169
摘要	Cubic nano-crystalline Y2O3:Eu3+ powders with different grain sizes were produced by chemical auto-combustion, and their structure, morphology, and fluorescent spectra were characterized. The quantum efficiency of the D-5(0) level of Eu3+ was estimated, taking into account the energy transfer between Eu3+ ions located at C-2 and S-6 sites. Ag+ ions were introduced into the synthesis of the nanosized particles to modify the surface defects, resulting in increased emission intensity. These results indicated that the nanosized Y2O3:Eu3+ exhibits maximum internal quantum efficiency close to 90% after Ag+ ions are introduced into the synthesis of Y2O3:Eu3+. From the experimental results, it was concluded that the Ag+ ions are probably absorbed by the nanoparticle surface and do not enter the nanoparticle lattice. It was also found that the Ag+ ions can repair the surface defects and make the absorption of excitation light more efficient.
收录类别	SCI ; EI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/34143
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Chen B. J.,Meng Q. Y.,Zhong H. Y.,et al. Quantum efficiency and surface passivation effect of nanocrystalline Y2O3 : Eu3+[J]. Journal of Nanoscience and Nanotechnology,2008,8(3):1165-1169.
APA	Chen B. J..,Meng Q. Y..,Zhong H. Y..,Sun J. S..,Cheng L. H..,...&Chen M..(2008).Quantum efficiency and surface passivation effect of nanocrystalline Y2O3 : Eu3+.Journal of Nanoscience and Nanotechnology,8(3),1165-1169.
MLA	Chen B. J.,et al."Quantum efficiency and surface passivation effect of nanocrystalline Y2O3 : Eu3+".Journal of Nanoscience and Nanotechnology 8.3(2008):1165-1169.

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