Metal-enhanced upconversion luminescence of NaYF4:Yb/Er with Ag nanoparticles

被引：33
|
作者：
Wang, Zhaojin [1 ,2 ]
Wang, Chi [1 ]
Han, Qingyan [1 ]
Wang, Gang [1 ]
Zhang, Mingdi [1 ]
Zhang, Jing [1 ]
Gao, Wei [1 ]
Zheng, Hairong [1 ]
机构：
[1] Shaanxi Normal Univ, Sch Phys & Informat Technol, Xian 710119, Peoples R China
[2] Baoji Univ Arts & Sci, Coll Phys & Optoelect Technol, Baoji 721016, Peoples R China
来源：
MATERIALS RESEARCH BULLETIN | 2017年 / 88卷
基金：
美国国家科学基金会;
关键词：
Optical materials; Chemical synthesis; Luminescence; Optical properties; X-ray diffraction; ENERGY-TRANSFER; NANOCRYSTALS; FLUORESCENCE; SURFACE; NANOSTRUCTURES; SCATTERING; EMISSION; SILVER; RAMAN;
D O I：
10.1016/j.materresbull.2016.12.030
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Single rare earth doped NaYF4 nanoplate with different size of Ag nanoparticles is designed for the investigation of metal enhanced upconversion luminescence effect. Up to twice enhancement is obtained with big Ag nanoparticles. Luminescence quenching effect is also observed with small Ag nanoparticles. Exploration on the enhancement factors are carried out systematically based on the effect of local field enhancement, the coupling of LSPR with emission band, and even the enhanced far field distribution. It is suggested that the excitation enhancement is the reason for the enhancement at both wavelength. Emission enhancement also took a significant part in the result which is that in the system, the enhancement effect at 540 nm is greater than that at 650 nm. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码：182 / 187
页数：6
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