Theory of enhancement of thermoelectric properties of materials with nanoinclusions
By S. Faleev, Franccois L'eonard. 2008
591 citations recorded by the source corpus.
Based on the concept of band bending at metal/semiconductor interfaces as an energy filter for electrons, we present a theory for the enhancement of the thermoelectric properties of semiconductor materials with metallic nanoinclusions. We show that the Seebeck coefficient can be significantly increased due to a strongly energy-dependent electronic scattering time. By including phonon scattering, we find that the enhancement of $ZT$ due to electron scattering is important for high doping, while at low doping it is primarily due to a decrease in the phonon thermal conductivity.
Subfields: Materials Chemistry, Statistical and Nonlinear Physics
View Paper: https://www.semanticscholar.org/paper/e7ab0567cfd435f6a290c7c74f6063a665b22f99
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In Materials Chemistry
In Statistical and Nonlinear Physics
Citations in the corpus
- Recent advances in high-performance bulk thermoelectric materials (2016, background): “The energy filtering effect has been proposed as a possibility to enhance the Seebeck coefficient S by increasing the average charge carrier energy as low energy carriers are filtered out by a small potential barrier formed at the interface of the matrix and nanometre-scale inclusions.(112) While pa”
- On the tuning of electrical and thermal transport in thermoelectrics: an integrated theory–experiment perspective (2016, background): “It can be done by introducing interfaces in a composite structure that have energy barriers, which block carriers at low energy but not those at high energy.(56) Energy-barrier scattering is conceptually similar to the scattering by ionised impurities; both processes scatter low-energy carriers more”
- Solution-printable fullerene/TiS2 organic/inorganic hybrids for high-performance flexible n-type thermoelectrics (2018, background): “Some other factors, such as C60 components and interfacial scattering, could also significantly contribute to the enhancement of Seebeck coefficient.(44) A maximum power factor of as high as ~400 μW m K was observed in C60/TiS2 hybrid films at 1 wt% C60, which is much higher than that of the re-stac”