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Investigation of optical absorbance and crystallization of vanadium oxide in glasses

BAHMAN MIRHADI1, BEHZAD MEHDIKHANI2,*

Affiliation

  1. Imam Khomeini international university, engineering department, ceramic session, Qazvin, Iran
  2. Institute of standard and research industrial of Iran, material department, Tehran, Iran

Abstract

The crystallization of sodium silicate glasses doped with vanadium oxide (0-3-5-7–11 molar percent) has been investigated by ultraviolet-visible(UV-Vis) and fourier transform infrared(FTIR) spectroscopy, X-Ray diffraction(XRD) and scanning electron microscopy(SEM). The results showed that, By increasing content of vanadium oxide, Transmission of light through sodium silicate glasses reduced due to ligand field and charge transfer mechanisms, colored glass was developed in some special wavelengths. Transmission of light through sodium silicate glasses with the presence of vanadium oxide change and, also lead to formation of crystalline phases. More increasing of vanadium oxide caused that light transmission in spectrum of these glasses being reduced, so that increasing vanadium oxide up to 11%mol case that light absorbed, in which, by investigation vanadium oxide effect on constituent units of glass network by means of infrared spectrum at 400- 4000 cm-1 region, it was identified that new peak at 610 cm-1 has been appeared that this peak has been shifted to 615 cm-1 by heat treatment. XRD investigation showed that by increasing heat treatment temperature of sample up to 900°C strong peaks appeared..

Keywords

Crystallization, Vanadium oxide, Sodium silicate glasses, Spectroscopy of UV-Vis-IR.

Submitted at: April 4, 2011
Accepted at: June 9, 2011

Citation

BAHMAN MIRHADI, BEHZAD MEHDIKHANI, Investigation of optical absorbance and crystallization of vanadium oxide in glasses, Journal of Optoelectronics and Advanced Materials Vol. 13, Iss. 6, pp. 679-683 (2011)