Synthesis, growth mechanism, and tunable upconversion luminescence of Yb3+/Tm3+-codoped YF3 nanobundles

	Synthesis, growth mechanism, and tunable upconversion luminescence of Yb3+/Tm3+-codoped YF3 nanobundles
其他题名	论文其他题名
	Wang G. F.; Qin W. P.; Zhang J. S.; Wangyan; Cao C. Y.; Wang L. L.; Wei G. D.; Zhu P. F.; Kim R. J.
	2008
发表期刊	Journal of Physical Chemistry C
ISSN	1932-7447
卷号	112 期号:32 页码:12161-12167
摘要	A growth mechanism was proposed for YF3 nanocrystals forming in the quaternary reverse microemulsion system with water/cetyltrimethylammonium bromide/cyclohexane/1-pentanol. In the proposed mechanism, primary particles are formed by constant collision, fusion, and fission of micelles. These primary particles can further self-organize to one-dimensional nanostructure at room temperature. Results of X-ray diffraction and transmission electron microscopy reveal that each nanobundle consists of numerous nanowhiskers with a mean length of similar to 700 nm and a mean diameter of similar to 2 nm. Under 980 nm excitation, blue ((1)G(4) - H-3(6) and D-1(2) - F-1(4)) and ultraviolet (D-1(2) -> H-3(6) and I-1(6) -> F-3(4)/H-3(6)) upconversion fluorescence emitted from the YF3-Yb3+/TM3+ nanobundles. The relative intensity of the ultraviolet to the blue emission increases with decreasing the size of nanowhiskers. Spectral analysis indicates that the enhancement is attributed to the decrease of Judd-Ofelt parameter Omega(2), which precludes the transition from F-3(2) to 3174 and enhances the cross relaxation of F-3(2) + H-3(4) -> H-3(6) + D-1(2)
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/181722/26509
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Wang G. F.,Qin W. P.,Zhang J. S.,et al. Synthesis, growth mechanism, and tunable upconversion luminescence of Yb3+/Tm3+-codoped YF3 nanobundles[J]. Journal of Physical Chemistry C,2008,112(32):12161-12167.
APA	Wang G. F..,Qin W. P..,Zhang J. S..,Wangyan.,Cao C. Y..,...&Kim R. J..(2008).Synthesis, growth mechanism, and tunable upconversion luminescence of Yb3+/Tm3+-codoped YF3 nanobundles.Journal of Physical Chemistry C,112(32),12161-12167.
MLA	Wang G. F.,et al."Synthesis, growth mechanism, and tunable upconversion luminescence of Yb3+/Tm3+-codoped YF3 nanobundles".Journal of Physical Chemistry C 112.32(2008):12161-12167.

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