Energy use and conversion are important for the design of low-power electronics and energy-conversion systems. This is also a rich domain for both fundamental discoveries as well as technological advances.
This talk will present recent highlights from our studies of energy in novel nanoelectronics. We have investigated both Joule heating and Peltier cooling in graphene transistors, thermal transport in graphene nanoribbons, and engineering of high-field current flow in graphene interconnects.
We have also examined fundamental limits of data storage based on phase change (rather than charge or spin), achieving energy dissipation two orders of magnitude below industry state-of-the-art, approaching femtojoules per bit.
The results suggest new directions to improve nanoscale energy efficiency towards fundamental limits, through the design of geometry and materials.