Synthesis of Water Dispersible Hexagonal-Phase NaYF4:Yb, Er Nanoparticles with High Efficient Upconversion Fluorescence

被引：10

作者：

Cui, Yue ^{[1
,2
]}

Zhao, Suling ^{[1
,2
]}

Han, Meng ^{[1
,2
]}

Li, Panlai ^{[1
,2
]}

Zhang, Ligang ^{[1
,2
]}

Xu, Zheng ^{[1
,2
]}

机构：

[1] Beijing Jiaotong Univ, Minist Educ, Key Lab Luminescence & Opt Informat, Beijing 100044, Peoples R China

[2] Beijing Jiaotong Univ, Institude Optoelect Technol, Beijing 100044, Peoples R China

来源：

JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | 2014年 / 14卷 / 05期

基金：

中国国家自然科学基金;

关键词：

Upconversion NanoParticles; beta-NaYF4:Yb; Er; Water Dispersible; Core/Shell-Structure; NANOCRYSTALS; LUMINESCENCE; EMISSIONS;

D O I：

10.1166/jnn.2014.7960

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Yb3+ and Er3+-codoped hexagonal-phase NaYF4 nanoparticles are synthesized by a simple, safe, and cost-effective method. The results of X-ray powder diffraction (XRD) and transmission electron microscopy (TEM) show that the as-synthesized nanoparticles are in good accordance with the standard beta-NaYF4 with an average diameter of 60 nm after silica coating. The upconversion luminescence of prepared material under 980 nm excitation is detected, and the luminescence mechanism is discussed.

引用

页码：3597 / 3601

页数：5

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