Radio-Frequency Nanoelectromechanical Systems in Atomically-Thin Semiconducting Crystals
Event details
| Date | 04.06.2015 |
| Hour | 10:00 |
| Speaker |
Dr. Philip Feng, Case Western Reserve University Bio: Philip Feng is currently an Assistant Professor in Electrical Engineering at Case School of Engineering, Case Western Reserve University. His research is primarily focused on nanoscale devices and systems. Prior to joining the faculty at Case, Feng was at the Kavli Nanoscience Institute, California Institute of Technology (Caltech), where he served as a Staff Scientist and a Co-Principal Investigator from 2007 to 2010. He received his Ph.D. from Caltech in 2007 for developing ultra high frequency (UHF) nanoelectromechanical systems (NEMS) with low-noise technologies for real-time single-molecule sensing. His recent awards include an National Science Foundation CAREER Award, 3 Best Paper Awards (with his advisees, at IEEE NEMS 2013, IEEE Int. Freq. Control Symp. 2014, and AVS Int. Symp. 2014) out of 7 Best Paper Award Finalists, a T. Keith Glennan Fellowship, and an Innovative Incentive Award. Feng was one of 81 young engineers selected to participate in the National Academy of Engineering (NAE) 2013 U.S. Frontier of Engineering (USFOE) Symposium. Subsequently, he received the NAE Grainger Foundation Frontiers of Engineering Award in 2014. He is also the single recipient of the Case School of Engineering Graduate Teaching Award (2014) and Case School of Engineering Research Award (2015). He is a Senior Member of IEEE, and has been serving on the Technical Committees for IEEE IEDM, Transducers, IEEE MEMS, IFCS, and other flagship international conferences. |
| Location | |
| Category | Conferences - Seminars |
Nanoscience today enables exciting emergences of low-dimensional nanostructures and new materials with previously inaccessible properties. We explore these properties, coupled with mechanical degrees of freedom in designed nanostructures, to engineer new nanomachines and transducers, for sensing and information processing. In particular, nanoscale electromechanical systems (NEMS) operating in their multiple resonant modes can make a exquisite platform. In this talk, I will focus on introducing 2D NEMS based on atomically-thin crystals. While graphene has been very well known as the hallmark of 2D crystals, other interesting 2D crystals with tunable bandgaps have emerged, such as layers from transition metal di-chalcogenides (TMDCs) and black phosphorus. Atomically-thin structures derived from these materials possess a number of interesting electrical, optical, and mechanical properties, and are attractive for new nanodevices. I will describe our recent experiments on demonstrating various high-frequency MoS2 and other 2D NEMS resonators. By performing sensitive optical and electronic measurements, in combination with modeling, we quantify the performance of these 2D NEMS, and evaluate their potential applications and fundamental limits. Challenges and advances in experimental techniques will also be discussed.
Practical information
- General public
- Free
Organizer
- IMT
Contact
- Isabelle Schafer