Lattice thermal conductivity of graphene with conventionally isotopic defects

TL;DR

This paper investigates how doping graphene with heavy atoms affects its lattice thermal conductivity, revealing that even small concentrations of heavy dopants significantly reduce heat conduction.

Contribution

It provides new insights into the impact of isotopic and atomic mass doping on the thermal properties of finite-sized graphene.

Findings

Heavy atom doping drastically reduces thermal conductivity.

Small dopant concentrations cause significant conductivity drops.

Mass of substituting atoms strongly influences heat transport.

Abstract

The thermal conductivity of doped graphene flake of finite size is investigated with emphasis on the influence of mass of substituting atoms on this property. It is shown that the graphene doping by small concentrations of relatively heavy atoms results in a disproportionately impressive drop of lattice thermal conductivity.