PHONON SPECTRA IN GRAPHENE NANORIBBONS

Артур АСКЕРОВ Молдавский государственный университет

Abstract

Phonon energy spectra of arm-chair and zigzag graphene nanoribbons were investigated within valence-force-field model of lattice vibrations. It was established that the type of nanoribbons (arm-chair or zigzag), determining the shape of their boundaries, strongly influences the phonon energy. The latter may lead to the dependence of basic kinetic coefficients (thermal conductivity and electrical conductivity) on boundary shapes. Keywords: graphene, nanoribbon, valence-force-field, phonons, energy spectra.