Effect of vanadium on the optical and physical properties of lithium borate glasses

被引:33
作者
Arya, S. K. [1 ,2 ]
Kaur, G. [2 ]
Singh, K. [2 ]
机构
[1] ABES Inst Technol, Dept Appl Sci, Ghaziabad 201009, UP, India
[2] Thapar Univ, Sch Phys & Mat Sci, Patiala 147004, Punjab, India
关键词
UV-visible; IR spectra; X-ray diffraction; Optical basicity; Force constants; VIBRATIONAL-SPECTRA; BASICITY; ELECTRONEGATIVITY; Y2O3;
D O I
10.1016/j.jnoncrysol.2015.10.037
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
In the present studies, the effects of vanadium substitution for 30Li(2)O-55B(2)O(3)-(15-x) ZnO-xV(2)O(5), (0 <= x <= 7.5)d glass system on the physical and optical properties have been investigated. V2O5 can work as a conditional glass former and its incorporation into glass yields vanadyl ions (VO2+), which causes considerable change in the structure of glass. The glass composition can be tailored by optimizing the zinc and vanadium content so as to obtain the desirable semiconducting or optical applications. Physical parameters like density, molar volume, molar electro-negativity, oxide electro-negativity, basicity moderating parameters, ionic concentration, and inter-ionic distance are obtained for all the glass compositions. Characterization techniques like X-ray diffraction (XRD), UV-Visible and Fourier transforms infra-red spectroscopy (FTIR) are used to yield the structural and optical parameters. Average stretching force constant, network bond/volume and bulk modulus are calculated theoretically and correlated with each other. The Urbach energy as well as optical band gap shows a decreasing trend with decreasing concentration of V2O5 with respect to ZnO content. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码:393 / 398
页数:6
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