Room temperature synthesis of hydrophilic Ln(3+)-doped KGdF4 (Ln = Ce, Eu, Tb, Dy) nanoparticles with controllable size: energy transfer, size-dependent and color-tunable luminescence properties

	Room temperature synthesis of hydrophilic Ln(3+)-doped KGdF4 (Ln = Ce, Eu, Tb, Dy) nanoparticles with controllable size: energy transfer, size-dependent and color-tunable luminescence properties
	Yang DM ; Li GG ; Kang XJ ; Cheng ZY ; Ma PA ; Peng C ; Lian HZ ; Li CX ; Lin J
刊名	nanoscale
	2012
卷号	4 期号:11 页码:3450-3459
关键词	UP-CONVERSION FLUORESCENCE EARTH FLUORIDE NANOCRYSTALS DOPED NAYF4 NANOCRYSTALS POLYOL-MEDIATED SYNTHESIS LIGHT-EMITTING-DIODES LIQUID 2-PHASE SYSTEM OPTICAL-PROPERTIES BIOLOGICAL LABELS UPCONVERTING NANOPARTICLES CORE/SHELL NANOPARTICLES
ISSN号	2040-3364
通讯作者	li cx
中文摘要	in this paper, we demonstrate a simple, template-free, reproducible and one-step synthesis of hydrophilic kgdf4: ln(3+) (ln = ce, eu, tb and dy) nanoparticles (nps) via a solution-based route at room temperature. x-ray diffraction (xrd), scanning electron microscopy (sem), transmission electron microscopy (tem), fourier transform infrared spectroscopy (ft-ir), photoluminescence (pl) and cathodoluminescence (cl) spectra are used to characterize the samples. the results indicate that the use of water-diethyleneglycol (deg) solvent mixture as the reaction medium not only allows facile particle size control but also endows the as-prepared samples with good water-solubility. in particular, the mean size of nps is monotonously reduced with the increase of deg content, from 215 to 40 nm. the luminescence intensity and absolute quantum yields for kgdf4: ce3+, tb3+ nps increase remarkably with particle sizes ranging from 40 to 215 nm. additionally, we systematically investigate the magnetic and luminescence properties of kgdf4: ln(3+) (ln = ce, eu, tb and dy) nps. they display paramagnetic and superparamagnetic properties with mass magnetic susceptibility values of 1.03 x 10(-4) emu g(-1.)oe and 3.09 x 10(-3) emu g(-1.)oe at 300 k and 2 k, respectively, and multicolor emissions due to the energy transfer (et) process ce3+ -> gd3+ -> (gd3+)(n) -> ln(3+), in which gd3+ ions play an intermediate role in this process. representatively, it is shown that the energy transfer from ce3+ to tb3+ occurs mainly via the dipole-quadrupole interaction by comparison of the theoretical calculation and experimental results. this kind of magnetic/luminescent dual-function materials may have promising applications in multiple biolabels and mr imaging.
收录类别	SCI收录期刊论文
语种	英语
WOS记录号	WOS:000304145900022
公开日期	2013-06-30
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/48568]
专题	长春应用化学研究所_长春应用化学研究所知识产出_期刊论文
推荐引用方式 GB/T 7714	Yang DM,Li GG,Kang XJ,et al. Room temperature synthesis of hydrophilic Ln(3+)-doped KGdF4 (Ln = Ce, Eu, Tb, Dy) nanoparticles with controllable size: energy transfer, size-dependent and color-tunable luminescence properties[J]. nanoscale,2012,4(11):3450-3459.
APA	Yang DM.,Li GG.,Kang XJ.,Cheng ZY.,Ma PA.,...&Lin J.(2012).Room temperature synthesis of hydrophilic Ln(3+)-doped KGdF4 (Ln = Ce, Eu, Tb, Dy) nanoparticles with controllable size: energy transfer, size-dependent and color-tunable luminescence properties.nanoscale,4(11),3450-3459.
MLA	Yang DM,et al."Room temperature synthesis of hydrophilic Ln(3+)-doped KGdF4 (Ln = Ce, Eu, Tb, Dy) nanoparticles with controllable size: energy transfer, size-dependent and color-tunable luminescence properties".nanoscale 4.11(2012):3450-3459.