Two-dimensional semiconducting nanostructures based on single graphene sheets with lines of adsorbed hydrogen atoms
arXiv:0709.1015 · doi:10.1063/1.2800889
Abstract
It is shown that lines of adsorbed hydrogen pair atoms divide the graphene sheet into strips and form hydrogen-based superlattice structures (2HG-SL). We show that the forming of 2HG-SL drastically changes the electronic properties of graphene from semimetal to semiconductor. The electronic spectra of "zigzag" (n,0) 2HG-SL is similar to that of (n,0) carbon nanotubes and have a similar oscillation of band gap with number n, but with non-zero minimal values. The composite dual-periodic (n,0)+(m,0) 2HG-SLs of "zigzag" strips are analyzed, with the conclusion that they may be treated as quasi-two-dimensional heterostructures. We also suggest an experimental way of fabricating hydrogen superlattices.
12 pages, 3 figures
References in corpus (9)
- Electric Field Effect in Atomically Thin Carbon Films
- Two-Dimensional Gas of Massless Dirac Fermions in Graphene
- The SIESTA method for ab initio order-N materials simulation
- Efficient index handling of multidimensional periodic boundary conditions
- Energy Band Gap Engineering of Graphene Nanoribbons
- Energy Gaps in Graphene Nanoribbons
- Selfconsistent order-N density-functional calculations for very large systems
- Electronic and Magnetic Properties of Nanographite Ribbons
- Superlattices Consisting of "Lines" of Adsorbed Hydrogen Atom Pairs on Graphene
Cited by in corpus (12)
- Properties of Graphene: A Theoretical Perspective
- Diamond-Like C2H Nanolayer, Diamane: Simulation of the Structure and Properties
- The influence of size effect on the electronic and elastic properties of diamond films with nanometer thickness
- Strain engineering on graphene towards tunable and reversible hydrogenation
- Band Gaps in Jagged and Straight Graphene Nanoribbons Tunable by an External Electric Field
- Electronic and transport properties of kinked graphene
- Hidden correlation between absorption peaks in achiral carbon nanotubes and nanoribbons
- Electronic properties of the partially hydrogenated armchair carbon nanotubes
- First-principles modeling of the polycyclic aromatic hydrocarbons reduction
- Momentum alignment and the optical valley Hall effect in low-dimensional Dirac materials
- Electron Confinement Induced by Diluted Hydrogen-like Ad-atoms in Graphene Ribbons
- Directed Growth of Hydrogen Lines on Graphene: High Throughput Simulations Powered by Evolutionary Algorithm