Friday, November 18, 2016
4:00 p.m. in ETC 4.150
Professor Michael A. Cullinan
Department of Mechanical Engineering
The University of Texas at Austin
Graphene-based nanoelectromechanical (NEMS) resonators have the potential to overcome many of the limitations of traditional microelectromechanical (MEMS) resonators, because of the outstanding electrical and mechanical properties that graphene offers such as its extremely high stiffness-to-weight ratio and its large failure strain (ε > 20%). However, the incorporation of graphene resonators into real-world products has proven difficult because of the large measured variances in the performance of the graphene resonators that have been produced. This talk will present a method to design and fabricate graphene-based NEMS resonators where a MEMS device is used to tune the resonance frequency of the graphene from the MHz range to the GHz range in order to make wide-band tunable filters and reduce manufacturing variability.