What I Do I am a professor of chemical engineering at Cornell University. This means that I teach undergraduate and graduate students about science and engineering. I also have an active research program, involving undergraduate and graduate students. My area of research is computational materials science. I am a specialist in semiconductors, like the ones that power and create displays in cell phones, computers and solar cells. I am also engaged in a significant amount of work that involves the community, from our local Sciencenter museum to working with K-12 teachers and others in the community at large.