All posts by pascal

On-surface chemistry is a powerful method to fabricate organic nanostructures with high precision onto different kinds of surfaces. On more inert surfaces, the lack of reactivity of the underlying substrate can be circumvented by using the electrons from a scanning tunneling microscope (STM) tip, as a stimulus, to produce the reactants of a targeted reaction.… Read More

For single-molecule electrical junction conductance measurements the data analysis can be a key challenge because of the large datasets and large stochastic variation in junction conformation from one junction formation cycle to the next. Here, a data sorting algorithm was used to analyze the most dominant conductance groups for four molecular systems. The algorithm was… Read More

Lack of reproducibility hampers molecular devices integration into large-scale circuits. Thus, incorporating operando characterization can facilitate the understanding of multiple features producing disparities in different devices. In this work, we report the realization of hybrid molecular graphene field effect transistors (m-GFETs) based on 11-(Ferrocenyl)undecanethiol (FcC11SH) micro self-assembled monolayers (μSAMs) and high-quality graphene (Gr) in a… Read More

By employing a mechanically controllable break junction technique, we have realized an ideal single molecular linear actuator based on dithienylethene (DTE) based molecular architecture, which undergoes reversible photothermal isomerization when subjected to UV irradiation under ambient conditions. As a result, open form (compressed, UV OFF) and closed form (elongated, UV ON) of dithienylethene-based molecular junctions… Read More

Controlling the spatial distribution of dopants in graphene is the gateway to the realization of graphene-based electronic components. Here, it is shown that a submonolayer of self-assembled physisorbed molecules can be used as a resist during a post-synthesis nitrogen doping process to realize a nanopatterning of nitrogen dopants in graphene. The resulting formation of domains… Read More

2D materials beyond graphene and in particular 2D semiconductors have raised interest due to their unprecedented electronic properties, such as high carrier mobility or tunable bandgap. Blue phosphorene is an allotrope of black phosphorene that resembles graphene as it presents a honeycomb structure. However, it is known to have semiconductor character and the crucial point is… Read More

Atomically thin bismuth films (2D Bi) are becoming a promising research area due to their unique properties and their wide variety of applications such as spintronics, electronic and optoelectronic devices. We report on the structural and electronic properties of Bi on Au(110), explored by low-energy electron diffraction (LEED), scanning tunneling microscopy (STM) and density functional… Read More