Quality-Factor Enhancement of Nanoelectromechanical Systems by Capacitive Driving Beyond Resonance

Capacitive spring softening in single-walled carbon nanotube nanoelectromechanical resonators.

We report the capacitive spring softening effect observed in single-walled carbon nanotube (SWNT) nanoelectromechanical (NEM) resonators. The nanotube resonators adopt a dual-gate configuration with both bottom-gate and end-gate capable of tuning the resonance frequency through capacitive coupling. Interestingly, downward resonance frequency shifting is observed with increasing end-gate voltage...

Nanoelectromechanical Systems and Modeling

REVIEW ARTICLE Nanoelectromechanical systems

Nanoelectromechanical systems sNEMSd are drawing interest from both technical and scientific communities. These are electromechanical systems, much like microelectromechanical systems, mostly operated in their resonant modes with dimensions in the deep submicron. In this size regime, they come with extremely high fundamental resonance frequencies, diminished active masses, and tolerable force c...

A nanoelectromechanical systems actuator driven and controlled by Q- factor attenuation of ring resonator

24 Nanoelectromechanical Systems – Experiments andModeling

Nanoelectromechanical systems (NEMS) aremade of electromechanical devices that have critical dimensions from hundreds down to a few nanometers. By exploring nanoscale effects, NEMS present interesting and unique characteristics, which deviate greatly from their predecessor microelectromechanical systems (MEMS). For instance, NEMS-based devices can have fundamental frequencies in the microwave r...