Modeling graphene-based nanoelectromechanical devices

Modeling graphene-based nanoelectromechanical devices

M. Poetschke,1 C. G. Rocha,1 L. E. F. Foa Torres,2 S. Roche,1,3,4 and G. Cuniberti1 1Institute for Materials Science and Max Bergmann Center of Biomaterials, Dresden University of Technology, D-01062 Dresden, Germany 2Instituto de Física Enrique Gaviola (CONICET) and FaMAF, Universidad Nacional de Córdoba, Ciudad Universitaria, 5000 Córdoba, Argentina 3CEA, INAC, SP2M, L_sim, 17 rue des Martyrs...

Efficient Modeling Of Graphene Based Optical Devices

In the last years the unique optical properties of graphene have attracted the attention of the scientific community, and novel graphene-based photonic, plasmonic and optoelectronic devices have been proposed for a plethora of applications [1, 2]. In this framework, numerical and analytical modelling play a crucial role both for design and analysis purposes. As a matter of fact, well-establishe...

Nanoelectromechanical Systems and Modeling

Nanoelectromechanical Systems from Carbon Nanotubes and Graphene

Carbon nanotubes and graphene have many interesting properties. To exploit the properties in applications their synthesis and incorporation in devices has to be understood and controlled. This thesis is based on experimental studies on synthesis of carbon nanotubes and fabrication of nanoelectromechanical systems from carbon nanotubes and graphene. Vertically aligned nanotube arrays with height...

Graphene nanoelectromechanical systems as stochastic-frequency oscillators.

We measure the quality factor Q of electrically driven few-layer graphene drumhead resonators, providing an experimental demonstration that Q ∼ 1/T, where T is the temperature. We develop a model that includes intermodal coupling and tensioned graphene resonators. Because the resonators are atomically thin, out-of-plane fluctuations are large. As a result, Q is mainly determined by stochastic f...