Exempel på graphene

• It was found that hydrogen does not destroy the graphene at these energies, but is instead absorbed or reflected by the graphene.

• After repeated bouncing between graphene layers, the incident atom is trapped.

• It is seen that the interstitial does not diffuse across the graphene layer.

• Incidence at the lowest energies is shown to distort the graphene structure.

• The hydrogen adsorption rate is found to be dependent on the incident hydrogen energy and not on graphene temperature.

• The rate of hydrogen adsorption was shown to be dependent on the incident energy and not on the graphene temperature.

• The carbon wall is treated as graphene layers which are a minimal structure of both a graphite and a carbon fiber.

• In both cases curved graphene sheets can be observed together with onion-like particles and defective structures which we have defined fullerene-like structures.

• The incident atom gradually loses kinetic energy by repulsion of the carbon atom as it penetrates several graphene layers.

• The kinetic energy converted from potential energy is diffused into the entire atoms in the graphene through the overhanging carbon atom.

• Such interactions are typical in chemical sputtering experiments, and knowledge of the fundamental behavior of hydrogen and graphene in collisional conditions is essential for modeling the sputtering mechanism.

• In the present study, this mechanism is examined in detail through simulation of the collision of hydrogen atoms with graphene as one of the fundamental processes in plasma-carbon interaction.

• Old papers were unearthed in which researchers tried to isolate graphene starting with intercalated compounds.

• Large, temperature-independent mobilities approach those in exfoliated graphene placed on silicon oxide, but lower than mobilities in suspended graphene produced by the drawing method.

• A movie has been recorded inside the microscope showing hopping of individual carbon atoms around a hole punched in a graphene sheet.