We report the study of the thermoelectric properties of degenerate, boron-doped polycrystalline silicon on insulator structures. The occurrence of a regime where both the Seebeck coefficient and the conductivity increase is confirmed. This results in a power factor P of 13 mW K-2 m-1. We propose that such high values of P may be determined by adiabatic energy filtering occurring at grain boundaries decorated by segregated boron.
Narducci, D., Selezneva, E., Arcari, A., Cerofolini, G., Romano, E., Tonini, T., et al. (2011). Enhanced thermoelectric properties of strongly degenerate polycrystalline silicon upon second phase segregation. In MRS Proceedings (pp.24-29) [10.1557/opl.2011.511].
Enhanced thermoelectric properties of strongly degenerate polycrystalline silicon upon second phase segregation
NARDUCCI, DARIO;SELEZNEVA, EKATERINA;ARCARI, ANDREA;ROMANO, ELISABETTA;
2011
Abstract
We report the study of the thermoelectric properties of degenerate, boron-doped polycrystalline silicon on insulator structures. The occurrence of a regime where both the Seebeck coefficient and the conductivity increase is confirmed. This results in a power factor P of 13 mW K-2 m-1. We propose that such high values of P may be determined by adiabatic energy filtering occurring at grain boundaries decorated by segregated boron.
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