Spectral Probing of Surface Luminescence of Cubic Lu2O3:Eu3+ Nanocrystals Synthesized by Hydrothermal Approach

	Spectral Probing of Surface Luminescence of Cubic Lu2O3:Eu3+ Nanocrystals Synthesized by Hydrothermal Approach
其他题名	论文其他题名
	Li Y. P.; Zhang J. H.; Zhang X.; Luo Y. S.; Lu S. Z.; Hao Z. D.; Wang X. J.
	2009
发表期刊	Journal of Physical Chemistry C
ISSN	1932-7447
卷号	113 期号:41 页码:17705-17710
摘要	Cubic Lu2O3:Eu3+ nanorods, nanosheets, and nanoparticles are synthesized by a hydrothermal approach by adjusting the pH values of the precursor solutions. The unique luminescence properties of the nanocrystals are presented by the appearances of a long tail at the long-wavelength side of the charge transfer band (CTB), a novel F-7(0)-D-5(0) broad line, and the enhanced 624 nm emission line. The observed phenomena are more obvious with decreasing sample size in the order of nanorods > nanosheets > nanoparticles. Based on the experimental results of the thermal diffusion processes of Eu3+ from the surface to the inside of Lu2O3 particles, we conclude that the unique luminescence properties of the nanocrystals originate from the surface Eu3+. By the spectral decomposition, we obtain the excitation spectra of the interior Eu3+ and the surface Eu3+ of nanocrystals. In comparison with the bulk sample, the CTB of the interior Eu3+ presents an obvious blue shift due to the size confinement effects, while that of the surface Eu3+ shows a prominent red shift due to the distorted surface environments. The shorter lifetimes of the surface Eu3+ compared to that of the interior Eu3+ further indicate the distorted local environments on the surface of the nanocrystals. The shifts and the broadening of the CTB in Eu3+-doped nanocrystals can be well understood by the interior Eu3+ and the surface Eu3+.
收录类别	SCI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/24809
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Li Y. P.,Zhang J. H.,Zhang X.,et al. Spectral Probing of Surface Luminescence of Cubic Lu2O3:Eu3+ Nanocrystals Synthesized by Hydrothermal Approach[J]. Journal of Physical Chemistry C,2009,113(41):17705-17710.
APA	Li Y. P..,Zhang J. H..,Zhang X..,Luo Y. S..,Lu S. Z..,...&Wang X. J..(2009).Spectral Probing of Surface Luminescence of Cubic Lu2O3:Eu3+ Nanocrystals Synthesized by Hydrothermal Approach.Journal of Physical Chemistry C,113(41),17705-17710.
MLA	Li Y. P.,et al."Spectral Probing of Surface Luminescence of Cubic Lu2O3:Eu3+ Nanocrystals Synthesized by Hydrothermal Approach".Journal of Physical Chemistry C 113.41(2009):17705-17710.

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