Konrad Ullmann

TL;DR: Graphene is a promising platform with which to achieve light-field-driven control of electrons in a conducting material, because of its broadband and ultrafast optical response, weak screening and high damage threshold, and it is shown that a current induced in monolayer graphene by two-cycle laser pulses is sensitive to the electric-field waveform.

TL;DR: The demonstrated open-access graphene electrodes and the electrode-insensitive molecules provide a model system that will allow for a thorough investigation of an individual single-molecule contact with additional probes.

TL;DR: The fabrication process for freely suspended membranes consisting of bi- and trilayer graphene grown on silicon carbide delivers membranes with a cleanliness suited for high-resolution transmission electron microscopy (HRTEM) at atomic scale.

TL;DR: In this paper, the authors investigate charge transport in C60-based single-molecule junctions with graphene electrodes employing a combination of density functional theory (DFT) electronic structure calculations and Landauer transport theory.

TL;DR: Local intercalation of the graphene-substrate interface can selectively be established in the vicinity of graphene edges or predefined voids, corresponding to a conversion from n-type to p-type charge carriers.