Study on spectroscopic properties and effects of tungsten ions in 2BiO-3GeO/SiO glasses.
作者信息
Yu Pingsheng, Su Liangbi, Cheng Junhua, Zhang Xia, Xu Jun
机构信息
School of Materials Engineering, Yancheng Institute of Technology, Yancheng, Jiangsu 224051, China.
Key Laboratory of Transparent and Opto-Functional Inorganic Materials, Chinese Academy of Sciences, Shanghai Institute of Ceramics, Shanghai 200050, China.
出版信息
Appl Radiat Isot. 2017 Apr;122:106-110. doi: 10.1016/j.apradiso.2017.01.015. Epub 2017 Jan 20.
The 2BiO-3GeO/SiO glass 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 SiO for GeO, the 0.4BiO-(0.4-0.1)GeO-(0.2-0.5)SiO glasses exhibit strong emission centered at about 475nm (under 300nm excitation), and the decay constants are within the scope of 20-40ns. W doping into 2BiO-3SiO glass could increase the emission intensity of 470nm, and the W-doped 2BiO-3SiO glass has shown another emission at about 433nm with much shorter decay time (near 10ns). The 2BiO-3GeO/SiO glass system could be the possible candidate for scintillator in high energy physics applications.
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