title: Study on spectroscopic properties and effects of tungsten ions in 2Bi2O3-3GeO2/SiO2glasses.
abstract: The 2Bi2O3-3GeO2/SiO2glass samples have been prepared by the conventional melt quenching technique. XRD patterns, absorption spectra, excitation-emission spectra and Raman measurements were utilized to characterize the synthesized glasses. When substitute SiO2for GeO2, the 0.4Bi2O3-(0.4-0.1)GeO2-(0.2-0.5)SiO2glasses exhibit strong emission centered at about 475nm (under 300nm excitation), and the decay constants are within the scope of 20-40ns. W doping into 2Bi2O3-3SiO2glass could increase the emission intensity of 470nm, and the W-doped 2Bi2O3-3SiO2glass has shown another emission at about 433nm with much shorter decay time (near 10ns). The 2Bi2O3-3GeO2/SiO2glass system could be the possible candidate for scintillator in high energy physics applications.
authors.affiliation: School of Materials Engineering, Yancheng Institute of Technology, Yancheng, Jiangsu 224051, China. Electronic address: yupingsheng3110@163.com.
authors.forename: Pingsheng
authors.initials: P
authors.lastname: Yu
authors.affiliation: Key Laboratory of Transparent and Opto-Functional Inorganic Materials, Chinese Academy of Sciences, Shanghai Institute of Ceramics, Shanghai 200050, China.
authors.forename: Liangbi
authors.initials: L
authors.lastname: Su
authors.affiliation: School of Materials Engineering, Yancheng Institute of Technology, Yancheng, Jiangsu 224051, China.
authors.forename: Junhua
authors.initials: J
authors.lastname: Cheng
authors.affiliation: School of Materials Engineering, Yancheng Institute of Technology, Yancheng, Jiangsu 224051, China.
authors.forename: Xia
authors.initials: X
authors.lastname: Zhang
authors.affiliation: School of Physics & Engineering, Tongji University, Shanghai 200092, China.
authors.forename: Jun
authors.initials: J
authors.lastname: Xu
keywords: 2Bi(2)O(3)-3GeO(2)/SiO(2); Glass; Photoluminescence