Seminario INMA: “Single Molecule Electronics”, por Richard J. Nichols. - Miércoles 28 de febrero
El próximo miércoles 28 de febrero de 2024 tendrá lugar un nuevo seminario del Instituto de Nanociencia y Materiales de Aragón, INMA, instituto mixto del CSIC y la Universidad de Zaragoza, en esta ocasión de la mano de Richard J. Nichols de la Universidad de Liverpool que ofrecerá la conferencia titulada: Single Molecule Electronics.
Resumen de la charla (en inglés):
This lecture presents detailed measurements of the electrical properties of single molecular wires and discusses how these have contributed to understanding charge flow through single molecular junctions. We have exploited scanning tunneling microscopy (STM) based methods for making single molecule measurements on a wide variety of molecular targets, from short molecular bridges to redox active organometallic molecular wires and for complex supramolecular assemblies. Such measurements have been made as two-terminal determinations and also under electrochemical potential control with electrolytes varying from aqueous solutions to ionic liquids. This presentation will review some of our findings on the electrical properties of molecule wires as well as presenting our latest data recorded using the STM break junction method, with a focus on mechanisms and stochastics of charge transport in single molecule wires.
References:
1. Leary, E.; Kastlunger, G.; Limburg, B.; Rincon-Garcia, L.; Hurtado-Gallego, J.; Gonzalez, M. T.; Bollinger, G. R.; Agrait, N.; Higgins, S. J.; Anderson, H. L.; Stadler, R.; Nichols, R. J., Long-lived charged states of single porphyrin-tape junctions under ambient conditions. Nanoscale Horizons 2021, 6 (1), 49-58.
2. Wu, C. L.; Qiao, X. H.; Robertson, C. M.; Higgins, S. J.; Cai, C. X.; Nichols, R. J.; Vezzoli, A., A Chemically Soldered Polyoxometalate Single-Molecule Transistor. Angewandte Chemie-International Edition 2020,59 (29), 12029-12034.
3. Wu, C. L.; Bates, D.; Sangtarash, S.; Ferri, N.; Thomas, A.; Higgins, S. J.; Robertson, C. M.; Nichols, R. J.; Sadeghi, H.; Vezzoli, A., Folding a Single-Molecule Junction. Nano Letters 2020, 20 (11), 7980-7986.
4. Wattanavichean, N.; Gilby, M.; Nichols, R. J.; Arnolds, H., Detection of Metal-Molecule-Metal Junction Formation by Surface Enhanced Raman Spectroscopy. Analytical Chemistry 2019, 91 (4), 2644-2651.
5. Ferri, N.; Algethami, N.; Vezzoli, A.; Sangtarash, S.; McLaughlin, M.; Sadeghi, H.; Lambert, C. J.; Nichols, R. J.; Higgins, S. J., Hemilabile Ligands as Mechanosensitive Electrode Contacts for Molecular Electronics. Angewandte Chemie-International Edition 2019, 58 (46), 16583-16589.
Biography: Richard Nichols’ research areas include investigating aspects of conduction in single molecules, single molecule electrochemistry, molecular electronics, nanoscience, scanning probe microscopy, nanoscale electrochemistry, interfacial electrochemistry, metal plating and in-situ spectroscopic methods for studying electrode surfaces. He is an expert in the field of scanning probe microscopy, particularly as applied to in-situ electrochemical measurements and single molecule electronics. He has ~200 publications in peer-reviewed journals. Since 2000 he has been developing techniques for the measurement of molecular electrical properties.
La conferencia tendrá lugar elmiércoles 28 de febrero a las 12:00 horas en la Sala de Grados de la Facultad de Ciencias de la Universidad de Zaragoza.
