Abstract
A model of the heterogeneous semiconductor medium consisting of multiphase granules, which are the crystal semiconductor grains covered by the oxide film has been proposed. The effective medium model (EMM) of the set of contacting granules has been constructed. Each granule phase is characterised by its own conductivity σ i , heat conductivity χ i , Seebeck factor α i , characteristic size d i and, accordingly, efficiency of thermoelectric transformation Z i . Expressions for the estimation of σ eff , χ eff , α eff and Z eff are constructed, and their values depending on asymmetry degree of characteristics of the granule components are analysed. The complicated ternary thermoelectric media is considered. The possibilities of acquisition of the optimal medium characteristics under various technological conditions and the action of ionizing radiation have been studied.
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Acknowledgements
This work was supported by the Committee for Coordination Science and Technology Development under Cabinet of Ministers of Uzbekistan, contract F3-F-F158.
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Ashurov, K., Abdurakhmanov, B., Djurabekova, F., Kuchkanov, S., Maksimov, S., Oksengendler, B. (2013). Special Features of Thermoelectric Phenomena in Granulated Semiconductors. In: Egger, R., Matrasulov, D., Rakhimov, K. (eds) Low-Dimensional Functional Materials. NATO Science for Peace and Security Series B: Physics and Biophysics. Springer, Dordrecht. https://doi.org/10.1007/978-94-007-6618-1_18
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DOI: https://doi.org/10.1007/978-94-007-6618-1_18
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