Phonons and Thermal Transport in Graphene and Graphene-Based Materials

TL;DR

This paper reviews recent advances in understanding phonon transport and thermal conductivity in graphene and related materials, emphasizing models, experimental results, and the influence of atomic structure on heat conduction.

Contribution

It provides a comprehensive analysis of phonon dispersion, thermal properties, and computational models specific to graphene-based materials, highlighting recent experimental and theoretical findings.

Findings

Phonon spectrum significantly influences thermal conductivity.

Atomic plane rotations affect phonon transport in bilayer graphene.

Isotope engineering modifies thermal properties of graphene.

Abstract

A discovery of the unusual thermal properties of graphene stimulated experimental, theoretical and computational research directed at understanding phonon transport and thermal conduction in two-dimensional material systems. We provide a critical review of recent results in the graphene thermal field focusing on phonon dispersion, specific heat, thermal conductivity, and comparison of different models and computational approaches. The correlation between the phonon spectrum in graphene-based materials and the heat conduction properties is analyzed in details. The effects of the atomic plane rotations in bilayer graphene, isotope engineering, and relative contributions of different phonon dispersion branches are discussed. For readers' convenience, the summaries of main experimental and theoretical results on thermal conductivity as well as phonon mode contributions to thermal transport are provided in the form of comprehensive annotated tables.