3D Bi₂Te₃ Interconnected Nanowire Networks to Increase Thermoelectric Efficiency.

ABSTRACT: 3D interconnected nanowire scaffoldings are shown to increase the thermoelectric efficiency in comparison to similar diameter 1D nanowires and films grown under similar electrodeposition conditions. Bi₂Te₃ 3D nanonetworks offer a reduction in thermal conductivity (κ_T) while preserving the high electrical conductivity of the films. The reduction in κ_T is modeled using the hydrodynamic heat transport equation, and it can be understood as a heat viscosity effect due to the 3D nanostructuration. In addition, the Seebeck coefficient is twice that of nanowires and films, and up to 50% higher than in a single crystal. This increase is interpreted as a nonequilibrium effect that the geometry of the structure induces on the distribution function of the ph

SUBMITTER: Ruiz-Clavijo A 

PROVIDER: S-EPMC9127787 | biostudies-literature | 2021 Dec

REPOSITORIES: biostudies-literature