My research group focuses on electronic/mechanical dissipation phenomena in carbon nanotubes, graphene, and topological materials and development of photodetector technologies based on these materials. In the last 10 years, I have concentrated on overcoming the physical limitations of silicon through the development of 2D semiconductors and quantum materials. I characterized the interface between molybdenum disulfide and gold, using scanning tunneling microscopy (STM) enhanced with machine learning and automation, to show how hybridization and defect densities influence electronic performance. I have determined the topological surface states of nickel telluride, which can be used to develop new low power electronics, and discovered that carbon nanotube devices suffer from enhanced scattering at the band edge as the Wigner cusps manifests even in these devices.

My group is now working on the development of mm-wave photodetectors with graphene weak link Josephson junctions and on understanding nanoscale friction at technologically relevant speeds.