Methodology of Thermoelectric Power Factor Enhancement by Controlling Nanowire Interface
Citations Over TimeTop 10% of 2018 papers
Abstract
The simultaneous realization of low thermal conductivity and high thermoelectric power factor in materials has long been the goal for the social use of high-performance thermoelectric modules. Nanostructuring approaches have drawn considerable attention because of the success in reducing thermal conductivity. On the contrary, enhancement of the thermoelectric power factor, namely, the simultaneous increase of the Seebeck coefficient and electrical conductivity, has been difficult. We propose a method for the power factor enhancement by introducing coherent homoepitaxial interfaces with controlled dopant concentration, which enables the quasiballistic transmission of high-energy carriers. The wavenumber of the high-energy carriers is nearly conserved through the interfaces, resulting in simultaneous realization of a high Seebeck coefficient and relatively high electrical mobility. Here, we experimentally demonstrate the dopant-controlled epitaxial interface effect for the thermoelectric power factor enhancement using our "embedded-ZnO nanowire structure" having high-quality nanowire interfaces. This presents the methodology for substantial power factor enhancement by interface carrier scattering.
Related Papers
- → Improvement of the thermoelectric characteristics of Fe-doped misfit-layered Ca3Co4−xFexO9+δ (x=, 0.05, 0.1, and 0.2)(2006)101 cited
- → Effect of Manganese Dioxide Nanorods on the Thermoelectric Properties of Cement Composites(2018)73 cited
- → Connectivity-driven bi-thermoelectricity in heteroatom-substituted molecular junctions(2018)33 cited
- → Influence of the sheet metal Seebeck coefficient on wear detection based on thermoelectric measurement(2021)1 cited