Reflecting Atoms off Graphene

Reflecting slow atoms from a damped resonator

Previous studies of the reflection of slow excited atoms entering an empty microwave resonator are extended by including the dissipation of the photon

Understanding adsorption of hydrogen atoms on graphene.

Adsorption of hydrogen atoms on a single graphite sheet (graphene) has been investigated by first-principles electronic structure means, employing plane-wave based periodic density functional theory. A 5 x 5 surface unit cell has been adopted to study single and multiple adsorptions of H atoms. Binding and barrier energies for sequential sticking have been computed for a number of configuration...

NaNomaTerials Graphene rolls off the press 30 - inch graphene

The two-dimensional form of carbon, graphene, shows remarkable electronic properties1,2 that could prove useful in applications such as ultrafast energyefficient transistors3,4 for computers and mobile devices, and as flexible transparent conductors for macroelectronic devices such as solar cells, display panels and electronic newspapers. However, to realize the technological potential of graph...

Field Mapping in Semiconductors by Off-axis Electron Holography: From Devices to Graphene and Single Dopant Atoms

Off-axis electron holography is an electron microscopy-based technique that allows the electrostatic and magnetic fields in and around a specimen to be measured with nm-scale resolution. The continuous reduction in the size of semiconductor devices means that information about the distribution of strain fields and active dopants at a nanometre scale is required in order to understand how these ...

pH-induced on/off-switchable graphene bioelectronics