ResearchOur group is mainly interested in the development of precursors and processes for atomic layer deposition (ALD), and we were the first academic research group in Canada to work in this field. As synthetic chemists, we try to determine the mechanism of the surface chemistry and thermal decomposition routes to better design precursors and tune our processes. We look at many different processes and target films, but some themes can broadly be drawn through our work.
We have been interested in group 11 metals for several years, and have contributed to precursor and process design for copper and gold metal ALD solutions.
Optical Fibres as Substrates
With collaborators in the electronics department at Carlton, we have done a significant amount of work on depositing metal and non-metal films on optical fibres with Bragg gratings printed in their core. These "tilted fibre Bragg gratings" (TFBGs) can be used to sense the index of refraction around the fibre due to light propogating to the fibre's cladding/air interface. With gold metal, we have shown that TFBGs are the most sensitive to refractive index changes and suspect that ALD of gold on fibres will drastically improve their performance.
Group 13 Precursors
We have been interested in group 13 chemistry from
our first group publication,
and have published several mechanistic thermal studies and process development papers. We remain interested in
gallium precursors like this diethyl amidinato gallium(III) compound
because of the difficulty in tuning these precursors to thermal deposition of nitrides.