Thermal properties of graphene: Fundamentals and applications

@article{Pop2012ThermalPO,
  title={Thermal properties of graphene: Fundamentals and applications},
  author={Eric Pop and Vikas Varshney and Ajit K. Roy},
  journal={Mrs Bulletin},
  year={2012},
  volume={37},
  pages={1273-1281}
}
Graphene is a two-dimensional (2D) material with over 100-fold anisotropy of heat flow between the in-plane and out-of-plane directions. High in-plane thermal conductivity is due to covalent sp 2 bonding between carbon atoms, whereas out-of-plane heat flow is limited by weak van der Waals coupling. Herein, we review the thermal properties of graphene, including its specific heat and thermal conductivity (from diffusive to ballistic limits) and the influence of substrates, defects, and other… 
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References

SHOWING 1-10 OF 104 REFERENCES

Two-Dimensional Phonon Transport in Supported Graphene

It is shown experimentally that κ of monolayer graphene exfoliated on a silicon dioxide support is still as high as about 600 watts per meter per kelvin near room temperature, exceeding those of metals such as copper.

Thermal transport in graphene

Modeling of thermal transport in pillared-graphene architectures.

This paper investigates the thermal transport in one such novel architecture-a pillared-graphene network nanostructure which combines graphene sheets and carbon nanotubes to create a three-dimensional network and foresee that such architecture could potentially be used as a template for designing future structurally stable microscale systems with tailorable in-plane and out-of-plane thermal transport.

Thermal conductivity of isotopically modified graphene.

The experimental data agree well with the molecular dynamics simulations, corrected for the long-wavelength phonon contributions by means of the Klemens model, and are expected to stimulate further studies aimed at a better understanding of thermal phenomena in 2D crystals.

Thermal properties of graphene and nanostructured carbon materials.

The thermal properties of carbon materials are reviewed, focusing on recent results for graphene, carbon nanotubes and nanostructured carbon materials with different degrees of disorder, with special attention given to the unusual size dependence of heat conduction in two-dimensional crystals.

Strain engineering of thermal conductivity in graphene sheets and nanoribbons: a demonstration of magic flexibility

The distinctive geometries of graphene sheets and graphene nanoribbons with large flexibility and their intriguing thermal properties under strains suggest their great potentials for nanoscale thermal managements and thermoelectric applications.

Heat conduction across monolayer and few-layer graphenes.

The findings suggest that metal contacts can limit not only electrical transport but also thermal dissipation from submicrometer graphene devices.

Thermal conduction and rectification in few-layer graphene Y junctions.

By using molecular dynamics simulations, it is found that the heat flux runs preferentially from the branches to the stem, which demonstrates an obvious thermal rectification effect in these asymmetric graphene ribbons.

Lattice thermal conductivity of graphene nanoribbons: Anisotropy and edge roughness scattering

We present a calculation of the thermal conductivity of graphene nanoribbons GNRs, based on solving the Boltzmann transport equation with the full phonon dispersions, a momentum-dependent model for…

Phonon thermal conduction in graphene: Role of Umklapp and edge roughness scattering

We investigated theoretically the phonon thermal conductivity of single-layer graphene. The phonon dispersion for all polarizations and crystallographic directions in graphene lattice was obtained…
...