Seminar Series

Molecular Electronics: Atomic-scale studies of molecules on surfaces

Speaker

Andrew J. Mayne

Institute

Institut des Sciences Moléculaires d’Orsay, France

Time & Place

Mon, 20 Feb 2017 11:00:00 NZDT in Rutherford 531, Level 5

All are welcome

Abstract

For the last 35 years, the Scanning Tunnelling Microscope (STM) has transformed the way we perceive and understand materials at the atomic scale [1]. The STM is the ideal technique for probing their electronic properties, and has been instrumental in the technological revolution particularly in assisting our understanding of new nano-materials that have been developed [2].

In this talk, I will discuss the STM studies we have performed in the Molecular Nanoscience Group. I will consider several experiments; from individual organic molecules adsorbed on semiconducting surfaces to self-assembled molecular layers on graphene. These studies probe the underlying physics and chemistry of the molecule-substrate and intermolecular interactions, the effects on the molecular states, and the role of the surface states on electron transport [3-5].

These studies reveal new electronic, optical, magnetic, and chemical properties can be explored at the level of a single atom or molecule. Our understanding of this molecular electronics is fundamental to the success of applications based on atomic-scale devices and memories, organic light emitting diodes, solar cells and sensors.

Biography

References :

[1] D.M. Eigler, et al. Nature 244, 524 (1990)

[2] J.W.G. Wildöer, et al. Nature 391, 59 (1998)

[3] H. Yang, A.J. Mayne, G. Comtet, G. Dujardin, Ph. Sonnet, L. Stauffer, S. Nagarajan, A. Gourdon, Phys. Chem. Chem. Phys. 15 (2013) 4939.

[4] H. Yang, O. Boudrioua, A.J. Mayne, G. Comtet, G. Dujardin, Ph. Sonnet, L. Stauffer, S. Nagarajan, A. Gourdon, Phys. Chem. Chem. Phys. 14 (2012) 1700. [5] A.J. Mayne, et al. Chem. Rev. 106, 4355 (2006)