The influence of cation additives on the NIR luminescence intensity of Er^(3+)-doped borate glasses  

作　　者：周永亮 张晓松 徐建萍 张忠朋 张高峰 魏凤巍 李岚 

机构地区：[1]Institute of Material Physics,Key Laboratory of Display Materials and Photoelectric Devices, Ministry of Education,Tianjin University of Technology

出　　处：《Chinese Physics B》2012年第6期398-402,共页中国物理B（英文版）

基　　金：Project supported by the Natural Science Foundation of Tianjin (Grant Nos. 09JCYBJC01400 and 11JCYBJC00300);the Natural Science Foundation of the Tianjin Education Committee (Grant No. 20071207);Tianjin Key Subject for Materials Physics and Chemistry

摘　　要：Er3+-doped 25BaO-(25-x)SiO2-xAl2O3-25B2O3 transparent glasses are prepared with x = 0,12.5 and 25 by a solid-state reaction.The Er-related NIR luminescence intensity,which corresponds to the transition of 4I15/2-4I13/2,is obviously altered with different silicon/aluminum ratios.The Judd-Ofelt parameters of the Er3+ ions are adopted to explain the intensity change in the NIR fluorescence,and the Raman scattering intensity versus the amount of Al and/or Si components are discussed.The spectra of the three samples are quite similar in the peak positions,but different in intensity.The maximal phonon density of state for the samples is calculated from the Raman spectra and is correlated to the NIR luminescence efficiency.Er3+-doped 25BaO-(25-x)SiO2-xAl2O3-25B2O3 transparent glasses are prepared with x = 0,12.5 and 25 by a solid-state reaction.The Er-related NIR luminescence intensity,which corresponds to the transition of 4I15/2-4I13/2,is obviously altered with different silicon/aluminum ratios.The Judd-Ofelt parameters of the Er3+ ions are adopted to explain the intensity change in the NIR fluorescence,and the Raman scattering intensity versus the amount of Al and/or Si components are discussed.The spectra of the three samples are quite similar in the peak positions,but different in intensity.The maximal phonon density of state for the samples is calculated from the Raman spectra and is correlated to the NIR luminescence efficiency.

关 键 词：maximal phonon density of state Judd-Ofelt intensity parameter Er3+-doped borate glasses 

分 类 号：O482.31[理学—固体物理]