Electronic Transport in Monolayer Graphene with Extreme Physical Deformation: ab Initio Density Functional Calculation

TL;DR

This study uses ab initio calculations to analyze how extreme physical bending affects the electronic transport properties of monolayer graphene, revealing high robustness in its low-energy transmission characteristics.

Contribution

It provides new insights into the effects of extreme bending on graphene's electronic properties using first-principles calculations, highlighting its potential for flexible electronic applications.

Findings

Transport properties are insensitive to bending in low-energy spectra.

Energy states are highly localized due to bending.

Graphene maintains robustness under extreme deformation.

Abstract

Electronic transport properties of monolayer graphene with extreme physical bending up to 90o angle are studied using ab Initio first-principle calculations. The importance of key structural parameters including step height, curvature radius and bending angle are discussed how they modify the transport properties of the deformed graphene sheet comparing to the corresponding flat ones. The local density of state reveals that energy state modification caused by the physical bending is highly localized. It is observed that the transport properties of bent graphene with a wide range of geometrical configurations are insensitive to the structural deformation in the low-energy transmission spectra, even in the extreme case of bending. The results support that graphene, with its superb electromechanical robustness, could serve as a viable material platform in a spectrum of applications such as photovoltaics, flexible electronics, OLED, and 3D electronic chips.