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Electrical and electrochemical properties of pretreated thermally and γ-irradiated TiO2

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Abstract

Electrical conductivity and Seebeck voltage developed in thermally pretreated and γ-irradiated TiO2 was measured as a function of temperature. The conversion of n-type TiO2 into p-type and vice versa observed after irradiation was explained in terms of ionization of Ti3+ donors and lattice O= species, subsequent trapping of carriers in adsorbed oxygen and further formation of p-type inversion layer on the oxide surface during irradiation. The sign of the EMF of the electrochemical Ag/Ag+ concentration cell by the addition of heated and γ-irradiated TiO2 in one of the compartment of the cell was found to be opposite to that due to the addition of the corresponding heated but non-irradiated oxide sample.

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Authors and Affiliations

  1. Department of Chemistry, N. Wadia College, 411 001, Pune, India

    L. Bapat

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  1. L. Bapat
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Bapat, L. Electrical and electrochemical properties of pretreated thermally and γ-irradiated TiO2 . Journal of Radioanalytical and Nuclear Chemistry Letters 105, 83–94 (1986). https://doi.org/10.1007/BF02163393

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  • DOI: https://doi.org/10.1007/BF02163393

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