Hydrothermal Synthesis and Upconversion Properties of alpha-NaYF4:Yb3+, Er3+ Nanocrystals Using Citric Acid as Chelating Ligand and NaNO3 as Mineralizer

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	Hydrothermal Synthesis and Upconversion Properties of alpha-NaYF4:Yb3+, Er3+ Nanocrystals Using Citric Acid as Chelating Ligand and NaNO3 as Mineralizer
	Wang, Chuanying 1; Cheng XH(程先华)1,2
刊名	Journal of Nanoscience and Nanotechnology
	2015
卷号	15 期号:12 页码:9656-9664
关键词	Cubic NaYF4 Citric Acid Nanocrystals Photoluminescence
ISSN号	1533-4880
通讯作者	程先华
英文摘要	Yb³⁺ and Er³⁺ ions co-doped α-NaYF₄:Yb³⁺, Er³⁺ nanocrystals were successfully synthesized via a facile hydrothermal method using citric acid (CA) as chelating ligand and NaNO₃ as mineralizer. The influences of the CA/RE (RE= Y+Yb+Er) molar ratio, reaction time, reaction temperature and the NaNO₃/RE molar ratio on the crystal phases and shapes of as-prepared products have been well investigated. The possible formation mechanism has been discussed in detail and an aggregation growth theory has been proposed. X-ray diffraction (XRD), transmission electron microscopy (TEM), selected area electron diffraction (SAED), scanning electron microscopy (SEM), and photoluminescence (PL) spectra were used to characterize the products. Under 980 nm excitation, the emission intensities of the as-prepared nanocrystals were much stronger than that of the nanocrystals modified by ethylenediaminetetraacetic acid (EDTA). Additionally, the as-prepared products maintained spherical shape and high degree of monodispersion, which is expected to be suggestive for the preparation of other complex rare earth fluoride compounds.
学科主题	材料科学与物理化学
收录类别	SCI
资助信息	the National Science Foundation of China (Grant No. 51175330)
语种	英语
WOS记录号	WOS:000365555000041
内容类型	期刊论文
源URL	[http://210.77.64.217/handle/362003/19117]
专题	兰州化学物理研究所_固体润滑国家重点实验室
作者单位	1.Shanghai Jiao Tong Univ, Sch Mech Engn, Shanghai 200240, Peoples R China 2.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Wang, Chuanying,Cheng XH. Hydrothermal Synthesis and Upconversion Properties of alpha-NaYF4:Yb3+, Er3+ Nanocrystals Using Citric Acid as Chelating Ligand and NaNO3 as Mineralizer[J]. Journal of Nanoscience and Nanotechnology,2015,15(12):9656-9664.
APA	Wang, Chuanying,&Cheng XH.(2015).Hydrothermal Synthesis and Upconversion Properties of alpha-NaYF4:Yb3+, Er3+ Nanocrystals Using Citric Acid as Chelating Ligand and NaNO3 as Mineralizer.Journal of Nanoscience and Nanotechnology,15(12),9656-9664.
MLA	Wang, Chuanying,et al."Hydrothermal Synthesis and Upconversion Properties of alpha-NaYF4:Yb3+, Er3+ Nanocrystals Using Citric Acid as Chelating Ligand and NaNO3 as Mineralizer".Journal of Nanoscience and Nanotechnology 15.12(2015):9656-9664.