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Mapping the excited states of single hexa-peri-benzocoronene oligomers.
It is demonstrated that the attribution of a tunnel electronic resonance to a peculiar π molecular orbital of the molecule (or σ intermonomer chemical bond) in the STM junction is inappropriate. Expand
Step-by-step rotation of a molecule-gear mounted on an atomic-scale axis.
The mechanics of an intentionally constructed molecule-gear on a Au(111) surface are presented, mounting and centring one hexa-t-butyl-pyrimidopentaphenylbenzene molecule on one atom axis, leading to the construction of a fundamental component of a planar single-molecule mechanical machine. Expand
Tailoring the local interaction between graphene layers in graphite at the atomic scale and above using scanning tunneling microscopy.
With recent developments in carbon-based electronics, it is imperative to understand the interplay between the morphology and electronic structure in graphene and graphite. We demonstrate controlledExpand
Manipulation of a single molecule ground state by means of gold atom contacts
Abstract Single gold adatoms were manipulated on a Au(1 1 1) surface with the tip of a scanning tunnelling microscope to contact selected peripheral π bonds of a single Coronene molecule. TunnellingExpand
Mapping the first electronic resonances of a Cu phthalocyanine STM tunnel junction.
It is demonstrated that dI/dV differential conductance maps are not representative of the molecular orbital spatial expansion, but rather result from their complex superposition captured by the STM tip apex with a superposition weight which generally does not correspond to the native weight used in the standard Slater determinant basis set. Expand
Hydrothermally-grown ZnO nanowire tips for scanning tunnelling microscopy.
Current-voltage characteristics demonstrate an asymmetry stemming from the unintentional n-type doping of the ZnO NW, whereas the expected Schottky barrier at the ZNO-Pt/Ir interface is shown to have negligible effect. Expand
Shifting atomic patterns: on the origin of the different atomic-scale patterns of graphite as observed using scanning tunnelling microscopy.
It is claimed that surface graphene displacement, coming both from lateral and vertical displacement of the top graphene layer, forms the basis of the rich variety of atomic patterns observed in STM experiments on graphite. Expand
Channel selective tunnelling through a nanographene assembly.
We report selective tunnelling through a nanographene intermolecular tunnel junction achieved via scanning tunnelling microscope tip functionalization with hexa-peri-hexabenzocoronene (HBC)Expand
CdSe/ZnS quantum dot size dependent carrier relaxation in hybrid organic/inorganic system.
The decrease of CdSe/ZnS QD size increased the fast component relaxation rate probably due to a higher number of surface defects hence inducing faster trapping of carriers by shallow trap state. Expand