Open AccessЭлектронный транспорт в модельных квазидвумерных ван-дер-ваальсовых наноустройствах
Author(s) -
Д.М. Сергеев,
А.Г. Дуйсенова
Publication year - 2021
Publication title -
pisʹma v žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-7471
pISSN - 0320-0116
DOI - 10.21883/pjtf.2021.08.50844.18583
Subject(s) - silicene , nanodevice , graphene , molybdenum disulfide , materials science , density functional theory , van der waals force , condensed matter physics , chemical physics , coulomb , nanotechnology , molybdenum , nanostructure , schottky barrier , electron , computational chemistry , chemistry , optoelectronics , molecule , physics , quantum mechanics , metallurgy , diode
Within the framework of the density functional theory in the local density approximation and the method of nonequilibrium Green's functions, electron transport in a model nanodevice consisting of a combination of graphene, silicene, and molybdenum disulfide interconnected by van der Waals bonds is investigated. Current-voltage, dI / dV characteristics, and transmission spectra of nanodevices are calculated. It is revealed that the combination of silicene and molybdenum disulfide forms a new nanosystem with metallic properties, which are manifested in its electrical transport characteristics. It is shown that the graphene-MoS2-silicene hybrid nanostructure has rectifying properties due to the formation of a Schottky barrier, and steps of Coulomb origin appear on its current-voltage characteristic at a positive voltage.