Temperature modulation of concentration quenching in lanthanide-doped nanoparticles for enhanced upconversion luminescence

doi:10.1007/s12274-017-1828-4

	Temperature modulation of concentration quenching in lanthanide-doped nanoparticles for enhanced upconversion luminescence
	Li, Luoyuan 2; Zhao, Ningjiu 1,2; Fu, Limin 2; Zhou, Jing 3; Ai, Xicheng 2; Zhang, Jianping 2
刊名	NANO RESEARCH
	2018-04-01
卷号	11 期号:4 页码:2104-2115
关键词	Upconversion Luminescence Lanthanide-doped Nanoparticle Temperature Modulation Concentration Quenching Energy Transfer
ISSN号	1998-0124
DOI	10.1007/s12274-017-1828-4
文献子类	Article
英文摘要	The doping concentration of lanthanide ions is important for manipulating the luminescence properties of upconversion nanoparticles (UCNPs). However, the serious concentration quenching in highly doped UCNPs remains a vital restriction for further enhanced upconversion luminescence (UCL). Herein, we examined the effect of temperature on the concentration quenching of rare-earth UCNPs, an issue that has been overlooked, and we show that it is significant for biomedical or optical applications of UCNPs. In this work, we prepared a series of UCNPs by doping Er3+ luminescent centers at different concentrations in a NaLuF4:Yb3+ matrix. At room temperature (298 K), steady-state photoluminescence (PL) spectroscopy showed substantial concentration quenching of the Er3+ emission with increasing doping concentrations. However, the concentration quenching effect was no longer effective at lower temperatures. Kinetic curves obtained from time-resolved PL spectroscopy further showed that the concentration quenching dynamics were vitally altered in the cryogenic temperature region, i.e., below 160 K. Our work on the temperature-switchable concentration quenching mechanism may shed light on improving UCL properties, promoting their practical applications.
WOS关键词	EMERGING APPLICATIONS ; OPTICAL SPECTROSCOPY ; EXCITATION-POWER ; ENERGY-TRANSFER ; IN-VIVO ; NANOCRYSTALS ; SENSITIVITY ; STRATEGY ; DESIGN ; IONS
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
语种	英语
出版者	TSINGHUA UNIV PRESS
WOS记录号	WOS:000427907700031
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/168904]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
通讯作者	Fu, Limin
作者单位	1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China 2.Renmin Univ China, Dept Chem, Beijing 100872, Peoples R China 3.Capital Normal Univ, Dept Chem, Beijing 100048, Peoples R China
推荐引用方式 GB/T 7714	Li, Luoyuan,Zhao, Ningjiu,Fu, Limin,et al. Temperature modulation of concentration quenching in lanthanide-doped nanoparticles for enhanced upconversion luminescence[J]. NANO RESEARCH,2018,11(4):2104-2115.
APA	Li, Luoyuan,Zhao, Ningjiu,Fu, Limin,Zhou, Jing,Ai, Xicheng,&Zhang, Jianping.(2018).Temperature modulation of concentration quenching in lanthanide-doped nanoparticles for enhanced upconversion luminescence.NANO RESEARCH,11(4),2104-2115.
MLA	Li, Luoyuan,et al."Temperature modulation of concentration quenching in lanthanide-doped nanoparticles for enhanced upconversion luminescence".NANO RESEARCH 11.4(2018):2104-2115.