Optical absorption and IR studies on 25Bi2O3-(75-x)B2O3-xBaO (0 ≤ x ≤ 25) glasses

被引：9

作者：

Kumar, R. Vijaya ^{[1
]}

Bale, Shashidhar ^{[1
]}

Srinivasu, Ch ^{[1
]}

Samee, M. A. ^{[1
]}

Kumar, K. Siva ^{[1
]}

Rahman, Syed ^{[1
]}

机构：

[1] Osmania Univ, Dept Phys, Hyderabad 500007, Andhra Pradesh, India

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2010年 / 490卷 / 1-2期

关键词：

Amorphous materials; Melt quenching; Optical absorption; Infrared spectroscopy; BORATE GLASSES; OXIDE; POLARIZABILITY; SPECTRA; ION;

D O I：

10.1016/j.jallcom.2009.08.039

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：

Glasses with composition 25Bi(2)O(3)-(75 - x)B2O3-xBaO, (0 <= x <= 25) have been prepared using melt quench technique. Optical absorption spectra of the glasses revealed that the cutoff wavelength increases and optical band gap energy decreased with increased in BaO content. The E-opt values of these glasses are found to be in the range 2.72-3.15 eV where as the value of Delta E lies in the range 0.45-0.27 eV. The polarizability of oxygen ions in these glasses is determined using optical absorption data. Theoretical basicity of the glasses is also evaluated by standard formula. Infrared studies revealed that the glasses under present study are made up of [BO3], [BO4] and [BiO6] units. (c) 2009 Published by Elsevier B.V.

引用

页码：1 / 4

页数：4

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