Chemistry & Physics/Astronomy Seminar: Growing 2D Heterostructures and Probing Exciton Dynamics
- 4:30 PM
Wednesday Sep 13, 2017
Olin-Rice Science Center 350
James Johns, Asst. Prof., Dept. of Chemistry, U of MN, will present.
Two Dimensional Materials is a new exciting area of research in chemistry and physics. From a chemical perspective, how can we make materials that are only a couple of atoms thick but macroscopically large? Which materials are stable, how can we control the thickness and, how can we interface different 2D materials together are some of the relevant chemical questions. Physically, the behavior of electrons depends on their dimensionality. The ability to make truly 2D systems allows us to explore novel electronic and optical behavior in these materials that are relevant for electronic and optical applications. I discuss my lab’s efforts to grow monolayer transition metal dichalcogenides and to interface different TMDCs together, and the role spin-orbit coupling in the optical properties of these materials explored by ultrafast spectroscopy.
Snacks at 3 PM.