UV-vis spectroscopic Investigation on γ-irradiated alkali aluminoborate glasses

被引:9
作者
Chopra, N. [1 ]
Singh, N. P. [2 ]
Baccaro, S. [3 ]
Sharma, G. [1 ]
机构
[1] KMV, Dept Phys, Jalandhar, India
[2] Punjab Tech Univ, Jalandhar, India
[3] Casaccia RC, ENEA FIM, I-00060 Rome, Italy
关键词
Alkali aluminoborate glasses; Radiation damage; Induced absorption coefficient; UV-vis spectroscopy; BORATE GLASSES; OPTICAL-ABSORPTION; SILICATE-GLASSES; RAY INTERACTION; PHOSPHATE; ULTRAVIOLET; DEPENDENCE; DEFECTS; SPECTRA;
D O I
10.1016/j.physb.2012.01.096
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
This research paper reports about the change in optical spectra of alkali aluminoborate glasses under high dose of gamma irradiation. Effect of irradiation on visible spectra finds remarkable applications in optoelectronic materials. Glasses with a host matrix composed of M2O (where M=Na, K), Al2O3, B2O3 were prepared by conventional melt quench technique. Gamma irradiation was performed at a dose-rate of 573 Gy/h to a total dose of 50 kGy. Samples were characterised before and immediately after irradiation by UV-vis transmission spectra in the range of 200-800 nm. The induced absorption coefficient and loss of transmission due to irradiation were attributed to the nature of alkali metals as well as the host matrix. (C) 2012 Elsevier B.V. All rights reserved.
引用
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页码:1209 / 1213
页数:5
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