Bi3+、Eu3+共掺杂纳米晶Gd2WO6荧光粉的共沉淀合成与表征

Co-precipitation synthesis and characterization of Bi3+, Eu3+ co-doped nanocrystal Gd2WO6 phosphors.

作者信息

Tian Yue, Chen Baojiu, Hua Ruinian, Cheng Lihong, Zhong Haiyang, Sun Jiashi, Wang Bo, Wan Jing, Lu Weili, Jang Kiwan

机构信息

Department of Physics, Dalian Maritime University, Dalian, Liaoning 116026, PR China.

出版信息

J Nanosci Nanotechnol. 2010 Mar;10(3):1943-6. doi: 10.1166/jnn.2010.2146.

DOI:10.1166/jnn.2010.2146

PMID:20355605

Abstract

Eu3+ single-doped and Bi3+/Eu3+ co-doped nanocrystal Gd2WO6 phosphors were successfully synthesized via a co-precipitation reaction. The structure and morphology of the phosphors were characterized by using X-ray powder diffraction (XRD) and field emission scanning electron microscopy (FE-SEM). The influence of Bi(3+)-doping concentration on the excitation and emission spectra was studied. It was found that the introduction of Bi3+ can greatly affect the charge transfer band and the luminescence intensity of Eu3+ but does not cause a change in the profile of emission spectra of Eu3+.

摘要

通过共沉淀反应成功合成了 Eu3+ 单掺杂和 Bi3+/Eu3+ 共掺杂的纳米晶 Gd2WO6 荧光粉。采用 X 射线粉末衍射（XRD）和场发射扫描电子显微镜（FE-SEM）对荧光粉的结构和形貌进行了表征。研究了 Bi(3+) 掺杂浓度对激发光谱和发射光谱的影响。结果发现，Bi3+ 的引入会极大地影响 Eu3+ 的电荷转移带和发光强度，但不会导致 Eu3+ 发射光谱轮廓的改变。