Static charging of graphene and graphite slabs

Abstract

The effect of external static charging of graphene and its flakes are investigated by using first-principles calculations. While the Fermi level of negatively charged graphene rises and then is quickly pinned by the parabolic, nearly free electron like bands, it moves down readily by removal of electrons from graphene. Excess charges accumulate mainly at both surfaces of graphite slab. Even more remarkable is that Coulomb repulsion exfoliates the graphene layers from both surfaces of positively charged graphite slab. The energy level structure, binding energy and and spin-polarization of specific adatoms adsorbed to a graphene flake can be monitored by charging.

accepted for publication in APL (after 226 days)

References in corpus (5)

• Electric Field Effect in Atomically Thin Carbon Films
• Molecular Doping of Graphene
• High-capacity hydrogen storage by metallized graphene
• Atomic Hole Doping of Graphene
• Direct observation of optically induced transient structures in graphite using ultrafast electron crystallography

Cited by in corpus (4)

• Two-gap superconductivity in heavily n-doped graphene: ab initio Migdal-Eliashberg theory
• Effects of static charging and exfoliation of layered crystals
• Composition Dependence of the Charge Driven Phase Transition in Group-VI Transition Metal Dichalcogenides
• Energy decomposition analysis of neutral and negatively charged borophenes