Gamma ray irradiation effects on the optical properties of BaO-Na2O-B2O3-SiO2 glasses

被引：34

作者：

Kaur, Ravneet ^{[1
]}

Singh, Surinder ^{[1
]}

Pandey, O. P. ^{[2
]}

机构：

[1] Guru Nanak Dev Univ, Dept Phys, Amritsar 143005, Punjab, India

[2] Thapar Univ, Sch Phys & Mat Sci, Patiala 147004, Punjab, India

来源：

JOURNAL OF MOLECULAR STRUCTURE | 2013年 / 1048卷

关键词：

Borosilicate glasses; Barium; UV-vis spectroscopy; Optical band gap; Gamma; NBOs; BOROSILICATE GLASSES; RADIATION DEFECTS; UV-ABSORPTION; METAL-IONS; PHOSPHATE; SILICATE; GENERATION; SPECTRA; IRON;

D O I：

10.1016/j.molstruc.2013.05.037

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

This paper reports the effect of gamma radiation on the optical absorption spectra of xBaO-Na2O-(70-x) B2O3-SiO2 glass system with x = 0, 5, 10, 15, 20, 25 (mol%) recorded in spectral range from 200 to 900 nm at room temperature. The optical absorption edge, optical band gap and Urbach energy were determined from the absorption spectra before and after irradiation. Changes occurring in the optical parameters of these glasses have been associated with radiation induced structural defects and compositional changes. (c) 2013 Elsevier B.V. All rights reserved.

引用

页码：78 / 82

页数：5

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