文献类型：会议论文

英文题名：VUV-photoluminescence Properties of (Gd, La)₂O₂CO₃: Eu³⁺

作者：Wang, Zhi-Long[1];Wang, Shi-Qin[1];Yao, Nin[1];Wei, Xing-Min[1]

第一作者：Wang, Zhi-Long

通信作者：Wang, ZL[1]

机构：[1]Gansu Univ Tradit Chinese Med, Lanzhou, Peoples R China

第一机构：甘肃中医药大学

通信机构：[1]corresponding author), Gansu Univ Tradit Chinese Med, Lanzhou, Peoples R China.|[10735]甘肃中医药大学;

会议论文集：International Conference on Material Engineering and Application (ICMEA)

会议日期：OCT 18-19, 2014

会议地点：Hangzhou, PEOPLES R CHINA

语种：英文

外文关键词：Gd2O2CO3:Eu3+; Phosphor; Rare Earths

年份：2014

摘要：(Gd,La)(2-x)O2CO3:Eu-x(3+)(0.01 <= x <= 0.04) were synthesized via a flux method at 400 degrees C, and their photoluminescence properties under vacuum ultraviolet (VUV) excitation were examined. The excitation spectra showed two bands in the region from 125 nm to 300 nm, the first band centered at 190 nm was ascribed to absorption of related CO32- complex, and the second broad band centered at 246nm and 278nm in Gd2O2CO3:Eu3+ was ascribed to the charge transfer band of O2- -> Eu3+. Series samples exhibited red emission at around 611 nm under vacuum ultraviolet excitation corresponding to the D-5(0) -> F-7(2). transition of Eu3+.