Radiation resistance property of barium gallo-germanate glass doped by Nb2O5 |
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| Authors: | Gui-Rong Liu Xiao-Dong Chen Hong-Gang Liu Yan Wang Min Sun Na Yan Qi Qian Zhong-Min Yang |
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| Affiliation: | 1.State Key Laboratory of Luminescent Materials and Devices and Institute of Optical Communication Materials, South China University of Technology, Guangzhou 510640, China;2.Guangdong Planning and Designing Institute of Telecommunications Co. LTD, Guangzhou 510630, China;3.Guangdong Provincial Key Laboratory of Fiber Laser Materials and Applied Techniques, South China University of Technology, Guangzhou 510640, China;4.Qingyuan Csg New Energy-Saving Materials Co., LTD, Qingyuan 511650, China |
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| Abstract: | Effects of Nb2O5 dopant on the radiation response of barium gallo-germanate (BGG) glass are studied mainly by electron paramagnetic resonance and absorption spectroscopy. Owing to the Nb5+↔Nb3+ interconversion in doped samples, formations of Ge-related non-bridging oxygen hole center and Ge-related electron center defects after γ-ray irradiation are inhibited. Thereby, Nb2O5 dopant can enhance radiation resistance of BGG glass, and 1.0% Nb2O5 concentration is the best. |
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| Keywords: | germanate glass radiation resistance Nb2O5 dopant |
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