Many of the phenomena we see in everyday life and many of the research tools behind the nanotechnology revolution involve interfaces and electrons crossing those interfaces. My research focuses on the design of experimental surface model systems that are modified with molecular level precision. The ultimate goal is to gain control of chemical reactivity at interfaces for the purpose of both fine-tuning electron transfer events (fundamental research), as well as to elucidate the scope of the electrical field’s effect on non-redox reactions (applied research, e.g. heterogeneous catalysis). Through key external collaborations (UNSW, QUT and University of Barcelona) we are also exploring chemical methodologies to alter at will, the function and properties of common semiconductors, in particular Si(100); the material that constitutes the building blocks for most of today's devices.
- electrochemical kinetics at metal and semiconductors electrodes. Molecular-tuning of charge-transfer kinetics at monolayers, double-layer effects at metal electrodes, space-charge effects at porous semiconductor electrodes;
- electrostatic effects on organic synthetic methodologies; role of directional electrical fields on non-redox reactions (in collaboration with Michelle Coote, ANU)
- fluidics effects on equilibrium properties (in collaboration with Colin Raston, Flinders University)
- single-molecule switches and photochromic-based devices (in collaboration with Nadim Darwish and Ismael Diez-Perez, University of Barcelona)
- photocatalysis semiconductor electrodes (in collaboration with J. Gooding, UNSW) · metal nanoparticles/thin films composites for high exchange currents systems. Exploring anomalous distance-independent electron-transfer kinetics;
- wetting at the nanoscale; water bonding at molecular monolayers; X-ray and neutron reflectometry (in collaboration with Prof. Michael James, ANSTO)
- chemical reactivity at hydrogenated-silicon surfaces. Deconvoluting molecular, solvent and band-bending effects (collaboration with Dr. Erwann Luais, Département de Chimie, Université François-Rabelais, Tours)