Hydrothermal Synthesis and Upconversion Properties of About 19nm Sc2O3: Er3+, Yb3+ Nanoparticles with Detailed Investigation of the Energy Transfer Mechanism

doi:10.1186/s11671-018-2794-9

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	Hydrothermal Synthesis and Upconversion Properties of About 19nm Sc2O3: Er3+, Yb3+ Nanoparticles with Detailed Investigation of the Energy Transfer Mechanism
	Li, F.; Li, J.; Chen, L.; Huang, Y. X.; Peng, Y. R.; Luo, Y. S.; Zhang, L. G.; Mu, J. J.
	2018
发表期刊	Nanoscale Research Letters
ISSN	1931-7573
卷号	13 页码:9
摘要	The Sc2O3: Er3+, Yb3+ nanoparticles (NPs) with the size of about 19nm were synthesized by a simple oleic acid-mediated hydrothermal (HT) process. X-ray diffraction (XRD), transmission electron microscopy (TEM), upconversion luminescence (UCL) spectra, and decay curves were used to characterize the resulting samples. The Sc2O3: Er3+, Yb3+ NPs made by HT method exhibit the stronger UCL, of which the red UCL are enhanced by a factor of 4, in comparison with those samples prepared by solvothermal (ST) method at the same optimized lanthanide ion concentrations. The UCL enhancement can be attributed to the reduced surface groups and longer lifetimes. Under 980nm wavelength excitation, the decay curves of Er3+: (H-2(11/2), S-4(3/2))I-4(15/2) and (F9/2I15/2)-F-4-I-4 emissions for Sc2O3: Er3+, Yb3+ NPs samples are both close to each other, resulting from the cross relaxation energy transfer from Er3+ to Yb3+, followed by an energy back transfer within the same Er3+-Yb3+ pair. Also, under the relatively low-power density, the slopes of the linear plots of log(I) vs. log(P) for red and green emissions are 2.5 and 2.1, implying the existence of three-photon processes. Our results indicate that Sc2O3: Er3+, Yb3+ NPs is an excellent material for achieving intense UCL with small size in the biological fields.
关键词	Sc2O3 Hydrothermal synthesis Upconversion Energy transfer Er3+ Yb3+ power dependence luminescence ions lanthanide emission nm Science & Technology - Other Topics Materials Science Physics
DOI	10.1186/s11671-018-2794-9
收录类别	SCI ; EI
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/61024
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	Li, F.,Li, J.,Chen, L.,et al. Hydrothermal Synthesis and Upconversion Properties of About 19nm Sc2O3: Er3+, Yb3+ Nanoparticles with Detailed Investigation of the Energy Transfer Mechanism[J]. Nanoscale Research Letters,2018,13:9.
APA	Li, F..,Li, J..,Chen, L..,Huang, Y. X..,Peng, Y. R..,...&Mu, J. J..(2018).Hydrothermal Synthesis and Upconversion Properties of About 19nm Sc2O3: Er3+, Yb3+ Nanoparticles with Detailed Investigation of the Energy Transfer Mechanism.Nanoscale Research Letters,13,9.
MLA	Li, F.,et al."Hydrothermal Synthesis and Upconversion Properties of About 19nm Sc2O3: Er3+, Yb3+ Nanoparticles with Detailed Investigation of the Energy Transfer Mechanism".Nanoscale Research Letters 13(2018):9.

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