Adsorbate-driven cooling of carbene-based molecular junctions

• Giuseppe Foti and
• Héctor Vázquez

Beilstein J. Nanotechnol. 2017, 8, 2060–2068, doi:10.3762/bjnano.8.206

• it possible to achieve a detailed understanding of the main factors governing single-molecule transport [2][3][4]. Recently, energy-exchange processes between tunneling electrons and vibrational degrees of freedom have been considered. Understanding heat generation and dissipation in the molecular

• therefore expect this work to be of general interest in the broader field of single molecule transport. a,b) Front and side view of the NHC attached to clean electrode terminations (C structure). c,d) Front and side view of the junction in presence of a NH2 group adsorbed on one side of the junction (CA

Stable Au–C bonds to the substrate for fullerene-based nanostructures

• Taras Chutora,
• Jesús Redondo,
• Bruno de la Torre,
• Martin Švec,
• Pavel Jelínek and
• Héctor Vázquez

Beilstein J. Nanotechnol. 2017, 8, 1073–1079, doi:10.3762/bjnano.8.109

• spread of electronic coupling and conductance values [9][10][11][12]. For an archetypal electrode material in single molecule transport studies such as Au, however, their high mobility at room temperature can lead to a large spread in conductance or to problems in trapping the molecule at the interface

• Au is very fast at room temperature, individual molecules cannot be stabilized and contacted outside islands. This has important consequences for single-molecule transport, where it would be desirable to have reliable and stable metal–molecule contacts. In the case of molecular spintronics, the

Role of solvents in the electronic transport properties of single-molecule junctions

• Katharina Luka-Guth,
• Sebastian Hambsch,
• Andreas Bloch,
• Philipp Ehrenreich,
• Bernd Michael Briechle,
• Filip Kilibarda,
• Torsten Sendler,
• Dmytro Sysoiev,
• Thomas Huhn,
• Artur Erbe and
• Elke Scheer

Beilstein J. Nanotechnol. 2016, 7, 1055–1067, doi:10.3762/bjnano.7.99

• solvent for single-molecule transport studies for molecular junctions in the conductance range above 10−4G0 only. The percentage of open-loop I–Vs of Tol is comparable with the one of TCB. Most curves cannot be fitted, neither with the SLM nor with the SM, although S-shaped I–Vs may appear in a wide

• one of the electrodes than to the other. Therefore, the interpretation of single-molecule transport data in Tol/THF needs particular caution, but with a critical analysis of the I–Vs also this mixture of solvents appears as a suitable choice. To further elucidate the different behaviour of the

Electron and heat transport in porphyrin-based single-molecule transistors with electro-burnt graphene electrodes

• Hatef Sadeghi,
• Sara Sangtarash and
• Colin J. Lambert

Beilstein J. Nanotechnol. 2015, 6, 1413–1420, doi:10.3762/bjnano.6.146

• nanometre-sized gap. The molecule can be placed in this gap, enabling the study of its electrical properties. Moreover, the ability to place a gate electrode beneath the gap makes this an excellent platform for tuning and studying quantum effects in single-molecule transport. Due to the combustion process

Charge transport in a zinc–porphyrin single-molecule junction

• Mickael L. Perrin,
• Christian A. Martin,
• Ferry Prins,
• Ahson J. Shaikh,
• Rienk Eelkema,
• Jan H. van Esch,
• Jan M. van Ruitenbeek,
• Herre S. J. van der Zant and
• Diana Dulić

Beilstein J. Nanotechnol. 2011, 2, 714–719, doi:10.3762/bjnano.2.77

• interpreted with care, and that the combination with I(V) spectroscopy represents an essential tool for a more detailed characterization of the charge transport in a single molecule. Keywords: mechanically controllable break junction; molecular conformation; molecular electronics; porphyrin; single-molecule

• transport; Introduction The break-junction method represents a popular choice to investigate the electronic transport through metal–molecule–metal junctions [1][2][3][4][5][6]. While repeatedly breaking and fusing two metallic electrodes, the low-bias conductance is monitored as a function of the electrode