1 research outputs found
Graphene Monoxide Bilayer As a High-Performance on/off Switching Media for Nanoelectronics
The
geometries and electronic characteristics of the graphene monoxide
(GMO) bilayer are predicted via density functional theory (DFT) calculations.
All the possible sequences of the GMO bilayer show the typical interlayer
bonding characteristics of two-dimensional bilayer systems with a
weak van der Waals interaction. The band gap energies of the GMO bilayers
are predicted to be adequate for electronic device application, indicating
slightly smaller energy gaps (0.418β0.448 eV) compared to the
energy gap of the monolayer (0.536 eV). Above all, in light of the
band gap engineering, the band gap of the GMO bilayer responds to
the external electric field sensitively. As a result, a semiconductor-metal
transition occurs at a small critical electric field (<i>E</i><sub>C</sub> = 0.22β0.30 V/Γ
). It is therefore confirmed
that the GMO bilayer is a strong candidate for nanoelectronics