Thermal Phonon Transport and Its Control at the Nanoscale

Thermal transport at the nanoscale: A Fourier's law vs. phonon Boltzmann equation study

Thermal Transport Mechanisms at Nanoscale Point Contacts

We have experimentally investigated the heat transfer mechanisms at a 90610 nm diameter point contact between a sample and a probe tip of a scanning thermal microscope (SThM). For large heated regions on the sample, air conduction is the dominant tipsample heat transfer mechanism. For micro/nano devices with a submicron localized heated region, the air conduction contribution decreases, whereas...

Deviational Phonons and Thermal Transport at the Nanoscale

We present a new method for simulating phonon transport at the nanoscale. The proposed approach is based on the recently developed energy-based deviational Monte Carlo method by the authors [Phys. Rev. B 84, 205331, 2011] which achieves significantly reduced statistical uncertainty compared to standard Monte Carlo methods by simulating only the deviation from equilibrium. Here, we show that und...

Graphene and Graphene Multilayers: Phonon Thermal Transport

In this entry, we review thermal properties of graphene and multilayer graphene and discuss in detail the optothermal Raman technique developed for the thermal conductivity measurements. We also outline different theoretical approaches used for the description of phonon transport in graphene and provide comparison with the available experimental thermal conductivity data.

Nanoscale Thermal Transport at Solid-liquid Interfaces By

This thesis focuses on the experimental study of nanoscale thermal transport across solid-liquid interfaces in both nanoparticle system and planar thin film system. Thermal conductance of solid-liquid interfaces, G, will be measured using time-domain thermo-reflectance and pump-probe transient absorption. Interface thermal conductance, G, relates the temperature drop T ∆ at an interface to the ...