Photoluminescence properties of Ce3+ and Tb3+-activated Ba2Mg(PO4)2

被引：9

作者：

Ju, Guifang ^{[1
]}

Hu, Yihua ^{[1
]}

Chen, Li ^{[1
]}

Jin, Yahong ^{[1
]}

Yang, Zhongfu ^{[1
]}

Wang, Tao ^{[1
]}

机构：

[1] Guangdong Univ Technol, Sch Phys & Optoelect Engn, Guangzhou 510006, Guangdong, Peoples R China

来源：

OPTICAL MATERIALS EXPRESS | 2015年 / 5卷 / 01期

基金：

中国国家自然科学基金;

关键词：

ELECTRONIC-ENERGY LEVELS; LANTHANIDE AQUO IONS; PERSISTENT LUMINESCENCE; EU2+; TB3+; PHOSPHORS; EU3+; SPECTROSCOPY; TRANSITION; GENERATION;

D O I：

10.1364/OME.5.000001

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The luminescence and energy transfer of cerium and terbium codoped Ba2Mg(PO4)(2) were investigated. The phosphor was prepared by a solid-state reaction at high temperature. The photoluminescence properties were investigated under UV excitation. From a powder X-ray diffraction analysis, the formation of single-phased Ba2Mg(PO4)(2) with a monoclinic structure was confirmed. The photoluminescence excitation spectrum of Ba2Mg(PO4)(2): Ce3+ shows that the excitation band from 220 to 350 nm and the broad-band UV-blue emission are attributed to the allowed 4f <-> 5d transitions of Ce3+. Upon excitation of Ce3+ band, Ba2Mg(PO4)(2):Ce3+, Tb3+ phosphors exhibit both Ce3+ emission band the characteristic Tb3+ emission lines. Also, efficient energy transfer from Ce3+ to Tb3+ in Ba2Mg(PO4)(2) was verified by observing the excitation spectra of Ba2Mg(PO4)(2):Ce3+, Tb3+. An energy level scheme is constructed to depict the energy transfer process. (C)2014 Optical Society of America

引用

页码：1 / 10

页数：10

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