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Comparative structural investigation of B2O3-MO-CuO glasses (MO → TeO2 or As2O3) by FTIR and Raman spectroscopies

R. CICEO LUCACEL1, I. ARDELEAN1,*

Affiliation

  1. Faculty of Physics, Babes-Bolyai University, 400084, Cluj-Napoca, Romania

Abstract

Glasses of the systems xCuO⋅(100-x)[2B2O3⋅MO] with MO → TeO2 or As2O3 and 0 ≤ x ≤ 30 mol % were prepared and investigated by FTIR and Raman spectroscopies. These methods were used, knowing the fact that they allowed to distinguish the local structural units, which on the whole, are in charge for the glasses structure and give their physical properties. The results were comparatively analyzed having in view the valence states of the glass matrix modifiers cations (Te4+ or As3+). It was evidenced that the network structure of the studied glasses is mainly based on the BO3 and BO4 units, the BO3 units being dominant. The influence of both, nature of the vitreous network modifiers and copper content (x), on the NBO4/NBO3 ratio evolution was evidenced..

Keywords

FT-IR data, Raman data, Structural units, Copper ions.

Submitted at: Dec. 2, 2005
Accepted at: May 18, 2006

Citation

R. CICEO LUCACEL, I. ARDELEAN, Comparative structural investigation of B2O3-MO-CuO glasses (MO → TeO2 or As2O3) by FTIR and Raman spectroscopies, Journal of Optoelectronics and Advanced Materials Vol. 8, Iss. 3, pp. 1124-1128 (2006)