Effects of Na+ on Spectral Properties of Er3+∶CaF2 Transparent Ceramic
Er3+,Na+-co-doped CaF2 transparent ceramics with Er3+ dopant concentration of 5at% and Na+ of 0,0.5,1.0 and 1.5at% were fabricated by the vacuum hot pressing method.Absorption spectra,emission spectra and fluorescence lifetimes were measured at room temperature to study the effects of Na+ on the spectral properties of Er3+∶CaF2 transparent ceramic.The results showed that after introducing Na ion into Er3+∶CaF2 transparent ceramics,charge-neutralized Er3+-Na+ structure formed which prevented Er3+ from clustering,the absorption intensity of ceramics decreased with the increase of Na+ concentration,but the spectroscopy and photoluminescence properties of Er3+ in CaF2 transparent ceramic could be modulated by adjusting the concentration of Na+.Co-doping Na+ to increase fluorescence lifetime should have an optimal value.
Transparent ceramic Fluorescence CaF2 Hot pressing
Weiwei Li Bingchu Mei Xiaonv Li Jinghong Song Guanglin Zhi
State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University Center for Materials Research and Analysis, Wuhan University of Technology, Wuhan 430070,China
国际会议
广州
英文
307-311
2012-11-16（万方平台首次上网日期，不代表论文的发表时间）