Upconversion Luminescence Properties of NaY0.92Yb0.05Er0.03F4 Enhanced by Zr^4＋ Codoping  

作　　者：刘宏升 徐汉东 黄清明 曹文兵 俞瀚 于岩 

机构地区：[1]State Key Laboratory of Photocatalysis on Energy and Environment, Key Laboratory of Eco-materials Advanced Technology(Fuzhou University),Fujian Province University,College of Materials Science and Engineering,Fuzhou University [2]Instrumental Analysis & Measurement Center,Fuzhou University

出　　处：《Chinese Journal of Structural Chemistry》2017年第10期1743-1751,共9页结构化学（英文）

基　　金：supported by the National Natural Science Foundation of China(No.51102047,51472050);State Key Laboratory of Photocatalysis on Energy and Environment Open Project

摘　　要：In this paper we present a novel report on the upconversion luminescence performance of NaY0.92Yb0.05Er0.03F4 enhanced by Zr^4＋ codoping. The luminescence intensity of the tridoped hexagonal NaYF_4 synthesized by a hydrothermal method increased to the maximum, about seven times of the non-Zr^4＋ sample when the Zr^4＋ codoping concentration rose to 6 mol%, while the luminescence lifetime was also prolonged by Zr^4＋ codoping. To explore the relationships between the microstructure and upconversion properties, X-ray powder diffraction, field emission scanning electron microscope, electron energy-dispersive spectroscopy and upconversion emission spectroscopy were employed. From these characterizations, we found that the codoping of Zr^4＋ could modulate the crystal microstructure of NaYF_4 for higher upconversion luminescence intensity and longer lifetime. This study may be helpful for the design and synthesis of high-performance upconversion materials.In this paper we present a novel report on the upconversion luminescence performance of NaY0.92Yb0.05Er0.03F4 enhanced by Zr^4＋ codoping. The luminescence intensity of the tridoped hexagonal NaYF_4 synthesized by a hydrothermal method increased to the maximum, about seven times of the non-Zr^4＋ sample when the Zr^4＋ codoping concentration rose to 6 mol%, while the luminescence lifetime was also prolonged by Zr^4＋ codoping. To explore the relationships between the microstructure and upconversion properties, X-ray powder diffraction, field emission scanning electron microscope, electron energy-dispersive spectroscopy and upconversion emission spectroscopy were employed. From these characterizations, we found that the codoping of Zr^4＋ could modulate the crystal microstructure of NaYF_4 for higher upconversion luminescence intensity and longer lifetime. This study may be helpful for the design and synthesis of high-performance upconversion materials.

关 键 词：NAYF4 UPCONVERSION Zr^4＋ codoping 

分 类 号：O644.1[理学—物理化学]