Plasmon-enhanced broad-band quantum-cutting of NaBaPO4:Eu^2+,Er^3+phosphors with silver nano-particles  

作　　者：Jinquan Hong Lin Lin Xiaoyan Li Zhuohong Feng Lili Huang Qing Qin Zhiqiang Zheng 

机构地区：[1]College of Physics and Energy,Fujian Normal University,Fuzhou 350117,China [2]Department of Physics and Electronic Information Engineering,Minjiang University,Fuzhou 350121,China [3]Fujian Provincial Collaborative Innovation Center for Optoelectronic Semiconductors and Efficient Devices,Xiamen 361005,China

出　　处：《Journal of Rare Earths》2020年第11期1151-1157,I0001,共8页稀土学报（英文版）

基　　金：Project supported by the National Natural Science Foundation of China(11204039,51202033);the Natural Science Foundation of Fujian Province of China(2017I01399,2017I01677,2019I01283)。

摘　　要：NaBaPO4:Eu^2+,Er^3+phosphors and Ag nano-particles(NPs)were prepared by the solid-state reaction and chemical reduction method,respectively.The fluorescence spectra and decay curves demonstrate the effective energy transfer from Eu^2+to Er^3+and the existence of three-photon quantum-cutting through two-step cross-relaxation of Er^3+.The quantum-cutting emission is peaked at 1534 nm with a broad excitation band centered at 352 nm,Plasmon-enhanced quantum-cutting of NaBaPO4:Eu^2+,Er^3+phosphors was realized by decorating Ag NPs.The largest enhancement factor is 1.395.It is hopeful to improve the photovoltaic conversion efficiency of Ge solar cells by using this phosphor.

关 键 词：Luminescence Localized surface plasmon resonance Broad-band quantum-cutting Rare-earth doped phosphors 

分 类 号：TB34[一般工业技术—材料科学与工程]