Extraordinary lattice thermal conductivity of gold sulfide monolayers.

ABSTRACT: Gold sulfide monolayers (α-, β-Au₂S, α-, β-, γ-AuS) have emerged as a new class of two-dimensional (2D) materials with appealing properties such as high thermal and dynamical stability, oxidation resistance, and excellent electron mobility. However, their thermal properties are still unexplored. In this study, based on first-principles calculations and the Peierls-Boltzmann transport equation, we report the lattice thermal conductivity (κ) and related phonon thermal properties of all members of this family. Our results show that gold sulfide monolayers have lattice thermal conductivity spanning almost three orders of magnitude, from 0.04 W m^-1 K^-1 to 10.62 W m^-1 K^-1, with different levels of anisotropy. Particularly, our results

SUBMITTER: Taheri A 

PROVIDER: S-EPMC9418960 | biostudies-literature | 2022 Jun

REPOSITORIES: biostudies-literature