Electronic materials

More specifically, my interest is in materials falling in the dielectric - semiconductor continuum, including wide bandgap semiconductors, semiconductor oxides, and transparent conducting oxides, and materials with weird electronic properties, such as metastable or memristive materials.

As a natural extension of my interest in growth, a focus of my research has been on the way synthesis and the resulting microstructure condition the electronic properties of the films, particularly at low temperatures, where interactions and kinetics are the difference between a really good material, and a piece of junk.

One of the examples is the growth of ZnO by atomic layer deposition: it can be grown epitaxially at temperatures as low as 100 degrees C, yet the temperature is so low that we can control the distribution of dopants. More recently, I have taken an interest in the potential of gallium oxide: it is a wide bandgap semiconductor with a monoclinic crystalline structure and the potential to yield large single crystal substrates, something that it is much harder to achieve in other comparable materials such as silicon carbide or gallium nitride. Therefore, it is an interesting material to keep an eye on, and it is the focus of one of my current research projects.

My interest in this area has lead to my being involved with the Power Electronics Industry Collaborative. Part of PEIC’s activities includes an analysis on the supply chain for advanced power electronics. I am also active in the Electronic Materials Conference, as member of their scientific committee.

Another area or current interest is on beyond CMOS approaches and in particular on neuromorphic computing. One of the fascinating aspects for me on this area is the strong coupling between materials, architectures, and computing.