Microwave-assisted synthesis and up-down conversion luminescent properties of multicolor hydrophilic LaF3:Ln3+ nanocrystals

	Microwave-assisted synthesis and up-down conversion luminescent properties of multicolor hydrophilic LaF3:Ln3+ nanocrystals
	Li F.; Li C.; Liu X.; Bai T.; Dong W.; Zhang X.; Shi Z.; Feng S.
	2013
发表期刊	Dalton Transactions
ISSN	ISBN/14779226
卷号	42 期号:6
摘要	Monodisperse water-soluble LaF3:Ln3+ nanocrystals (NCs) have been successfully fabricated via a fast, facile and environmentally-friendly microwave-assisted modified polyol process with polyvinylpyrrolidone (PVP) as an amphiphilic surfactant. The obtained NCs can be well dispersed in hydrophilic solutions with small sizes in the range of 9-12 nm. The LaF3:Ln3+ NCs (Ln = Eu, Nd, Ce, Tb, Yb, Er, Yb, Ho and Yb, Tm) have the unique feature of up-down conversion from visible to NIR emission owing to the ladder-like arranged energy levels of Ln3+ and in particular, the high efficiency upconversion of the two-photon, obtained from excitation by a continuous 980 nm laser. This investigation focuses on both the up and down conversion fluorescence properties of water-soluble monodisperse crystalline LaF3:Ln3+ NCs in such a small size. Furthermore, the three-dimensional PDMS rod-like fluorescence displays and a silica surface modification by a core/shell structure on the obtained NCs can improve the biocompatibility, indicating potential applications in optical 3D devices and as bio-probes. This journal is The Royal Society of Chemistry 2013.
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/181722/40753
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Li F.,Li C.,Liu X.,et al. Microwave-assisted synthesis and up-down conversion luminescent properties of multicolor hydrophilic LaF3:Ln3+ nanocrystals[J]. Dalton Transactions,2013,42(6).
APA	Li F..,Li C..,Liu X..,Bai T..,Dong W..,...&Feng S..(2013).Microwave-assisted synthesis and up-down conversion luminescent properties of multicolor hydrophilic LaF3:Ln3+ nanocrystals.Dalton Transactions,42(6).
MLA	Li F.,et al."Microwave-assisted synthesis and up-down conversion luminescent properties of multicolor hydrophilic LaF3:Ln3+ nanocrystals".Dalton Transactions 42.6(2013).

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