Abstract
Ionic thermocurrent (ITC) spectrum is much similar to a thermoluminescence (TL) glow curve involving monomolecular kinetics. It has already been reported that different orders of kinetics are involved in TL processes, which depend specifically on the extent of recombination and simultaneous retrapping. It is found that the involvement of different orders of kinetics in ITC spectrum depends on the experimental conditions of polarization and rate of rapid cooling. Consequently, order of kinetics involved in the ITC spectrum does not represent any specific feature of the system under investigation. An equation is developed which explains the occurrence of ITC spectrum involving any order of kinetics. Dielectric relaxation parameters, order of kinetics and approximate number of dipoles per unit volume are evaluated conveniently and easily following the proposed model.
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Acknowledgements
The author is thankful to HO Gupta and Devendra Prasad for their help in constructing the hypothetical systems and for evaluating the corresponding parameters.
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PRAKASH, J. A model for the occurrence and analysis of ionic thermocurrent spectrum involving different orders of kinetics. Pramana - J Phys 80, 143–158 (2013). https://doi.org/10.1007/s12043-012-0457-4
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DOI: https://doi.org/10.1007/s12043-012-0457-4