摘要
The single phase of BaGd1-xTbxB9O16(0.05≤x≤0.3) was prepared by the solid-state reaction.Their photoluminescence properties were investigated under vacuum ultraviolet(VUV) excitation.Monitored by 541 nm emission,the excitation spectrum of BaGd0.75Tb0.25B9O16 consisted of one broad band centered at about 148 nm and some bands in 163 to 282 nm.The former was assigned to the overlapped absorptions among borate groups,charge transfer bands(CTBs) of O2-→Ln3+(Ln=Tb,Gd) and the f→d transition of Gd3+.The bands in ...
The single phase of BaGd1-xTbxB9O16(0.05≤x≤0.3) was prepared by the solid-state reaction.Their photoluminescence properties were investigated under vacuum ultraviolet(VUV) excitation.Monitored by 541 nm emission,the excitation spectrum of BaGd0.75Tb0.25B9O16 consisted of one broad band centered at about 148 nm and some bands in 163 to 282 nm.The former was assigned to the overlapped absorptions among borate groups,charge transfer bands(CTBs) of O2-→Ln3+(Ln=Tb,Gd) and the f→d transition of Gd3+.The bands in ...
基金
supported by the National Natural Science Foundation of China (60808033)
the Natural Science Foundation of Jiangxi Province (2008GQC0059)
the Science Program of the Education Office,Jiangxi Province (GJJ08344)
the Young Foundation of Jiangxi University of Finance and Economy (01122015)
