Bvr. Chowdari et al., Synthesis and characterization of xCu(2)O center dot yTeO2 center dot(1-x-y)MoO3 glass system, SOL ST ION, 115, 1998, pp. 711-721
xCu(2)O . yTeO(2).(1-x-y)MoO3 glasses have been synthesized and characteriz
ed by DSC, IR and XPS techniques. Thermal studies have shown that the glass
transition temperature (T-g) varies with change in composition from 160 to
310 degrees C. IR studies of the glasses show structural variation of MoO6
octahedral and trigonal bipyramid(tbp)- and trigonal pyramid(tp)-tellurite
units with composition change. Through X-ray photoelectron spectroscopy(XP
S), the core-levels of Te 3d, Cu 2p, Mo 3d and O 1s electrons were studied.
Ionic conductivity was found to be strongly dependent on non-bridging oxyg
en content estimated from O 1s XPS spectra. Both IR and XPS results have be
en correlated to provide the structural information. (C) 1998 Published by
Elsevier Science B.V. All rights reserved.