Phonon Interference Effects In Graphene Nanomesh

Graphene nanomesh (GNM) is a single-layer graphene material that has periodic distribution of nanoscale pores. GNM shows great potential applications in various fields such as thermoelectric energy conversion, storage, and field-effect transistors. In this study we utilize non-equilibrium molecular dynamics lattice method to investigate the thermal transport mechanism GNM. The conductivity mainly affected by number pores their horizontal vertical spacing. Our finds increases, decreases significantly. Additionally, increase causes phonon branch be folded confined, which results flatter dispersion curve, wider bandgap, slower group velocity. Moreover, spacing jointly affect process When small, monotonically with spacing, increases an However, interference effect caused reflection superposition leads significant fluctuations conductivity. analysis spectral heat flow, density states, participation rate, velocity indicate variation different contributions resulting These findings could serve reference for controlling nanomesh, are significance regulating designing