A new regime of nanoscale thermal transport: Collective diffusion increases dissipation efficiency.

ABSTRACT: Understanding thermal transport from nanoscale heat sources is important for a fundamental description of energy flow in materials, as well as for many technological applications including thermal management in nanoelectronics and optoelectronics, thermoelectric devices, nanoenhanced photovoltaics, and nanoparticle-mediated thermal therapies. Thermal transport at the nanoscale is fundamentally different from that at the macroscale and is determined by the distribution of carrier mean free paths and energy dispersion in a material, the length scales of the heat sources, and the distance over which heat is transported. Past work has shown that Fourier's law for heat conduction dramatically overpredicts the rate of heat dissipation from heat sources with dimensions smaller than the mean free

SUBMITTER: Hoogeboom-Pot KM 

PROVIDER: S-EPMC4413272 | biostudies-literature | 2015 Apr

REPOSITORIES: biostudies-literature