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Characterization and electrical conductivity of Vanadium doped strontium bismuth borate glasses

VIRENDER KUNDU1,* , R. L. DHIMAN2, A. S. MAAN3, D. R. GOYAL3, SUSHEEL ARORA3

Affiliation

  1. Department of Electronic Science, Kurukshetra University, Kurukshetra 136 119 India
  2. Post-Graduate Department of Applied Physics, S.D. College, Ambala Cantt. 133 001 India
  3. Department of Physics, Maharshi Dayanand University, Rohtak 124 001 India

Abstract

Glasses with composition xSrO (40-x) Bi2O3 60 B2O3, x = 0, 5, 10, 15 and 20 molar % containing 2 mol % of V2O5 were prepared. The effect of SrO in the present glass matrix was investigated by means of physical, FT-IR, UV-VIS and dc conductivity measurements. The conversion of three fold (BO3) to four fold (BO4) coordination of boron observed in the glass system under study results in the formation of Non-bridging oxygen’s (NBO’s). The formation of NBO’s causes the decrease in band gap energy with increase in SrO content. The dc conductivity was found to increase with increase in temperature. A transition observed in the conductivity curve shows the conversion of electronic to ionic conductivity. This transition shifted to lower temperature region with increase in SrO content is due to decrease in band gap energy..

Keywords

Amorphous materials, FTIR, Optical absorption spectroscopy, Electrical conductivity.

Submitted at: Nov. 22, 2010
Accepted at: Nov. 25, 2010

Citation

VIRENDER KUNDU, R. L. DHIMAN, A. S. MAAN, D. R. GOYAL, SUSHEEL ARORA, Characterization and electrical conductivity of Vanadium doped strontium bismuth borate glasses, Journal of Optoelectronics and Advanced Materials Vol. 12, Iss. 12, pp. 2373-2379 (2010)