Feedback controlled nanocantilever device

Ke, Changhong; Espinosa, Horacio D.
July 2004
Applied Physics Letters;7/26/2004, Vol. 85 Issue 4, p681
Academic Journal
A switchable carbon-nanotube-based nanoelectromechanical systems (NEMS) with close-loop feedback is examined. The device consists of a cantilever carbon nanotube clamped to a top electrode and actuated by a bottom electrode. The actuation circuit includes a source and a feedback resistor. The pull-in/pull-out and tunneling characteristics of the system are investigated by means of an electromechanical analysis. The model includes the concentration of electrical charge, at the end of the nanocantilever, and the van der Waals force. The analysis shows that the device has two well-defined stable equilibrium positions as a result of tunneling and the incorporation of a feedback resistor to the circuit. Potential applications of the device include NEMS switches, random-access memory elements, logic devices, electron counters, and gap sensing devices.


Related Articles

  • Field Emission from Multi-Walled Carbon Nanotubes — Its applications in NEMS. Sveningsson, M.; Lee, S. W.; Park, Y. W.; Campbell, E. E. B. // AIP Conference Proceedings;2005, Vol. 786 Issue 1, p620 

    Nanoelectromechanical systems (NEMS) are a rapidly growing area of research. We discuss here the fabrication of two different three terminal nanorelay structures based on multi-walled carbon nanotubes (MWNT). Using a gate voltage the whole MWNT can be deflected and the tip of the carbon nanotube...

  • Creation of additional electrical pathways for the robust stretchable electrode by using UV irradiated CNT-elastomer composite. So-Young Lee; Seungmin Hyun; Bongkyun Jang; Sangmin Kim; Myoungho Kim; Hoo-Jeong Lee; Byung Mook Weon; Hyung Cheoul Shim // Applied Physics Letters;2016, Vol. 109 Issue 17, p171901-1 

    In this study, we fabricate an electrode structure, in which a carbon nanotube (CNT) film is coated on the composite of carbon nanotubes (CNTs) and polydimethylsiloxane (PDMS). Electromechanical tests disclose that incorporation of a high density of well-dispersed CNTs (with the aid of UV/O3...

  • Integration of suspended carbon nanotube arrays into electronic devices and electromechanical systems. Franklin, Nathan R.; Wang, Qian; Tombler, Thomas W.; Javey, Ali; Shim, Moonsub; Dai, Hongjie // Applied Physics Letters;7/29/2002, Vol. 81 Issue 5, p913 

    A synthetic strategy is devised for reliable integration of long suspended single-walled carbon nanotubes into electrically addressable devices. The method involves patterned growth of nanotubes to bridge predefined molybdenum electrodes, and is versatile in yielding various microstructures...

  • Smaller Component Packaging On The Way.  // Electronic Design;1/7/2002, Vol. 50 Issue 1, p77 

    Reports the development of smaller component packaging. Reduction of the component size; Increase the efficiency among microprocessors; Effects of the integration of capacitors on-chip.

  • PASSIVE & ELECTROMECHANICAL.  // Electronic Design;1/7/2002, Vol. 50 Issue 1, p80 

    Reports the evolution of electromechanical devices. Increase the demand for broadband operation; Application of solid-state relays; Development of devices into the gigahertz range.

  • Circuits without wires. Craig, Kevin C. // EDN;3/15/2012, Vol. 57 Issue 6, p24 

    The article explains the concept of circuits without wires including the equation of motion for electromagnetic system applying the Second law of Newton and the voltage law of Kirchdoff. A cross-section figure of cylindrical solenoid magnet showing the dynamics of motion for electromechanical...

  • On-chip electron-impact ion source using carbon nanotube field emitters. Bower, Christopher A.; Gilchrist, Kristin H.; Piascik, Jeffrey R.; Stoner, Brian R.; Natarajan, Srividya; Parker, Charles B.; Wolter, Scott D.; Glass, Jeffrey T. // Applied Physics Letters;3/19/2007, Vol. 90 Issue 12, p124102 

    A lateral on-chip electron-impact ion source utilizing a carbon nanotube field emission electron source was fabricated and characterized. The device consists of a cathode with aligned carbon nanotubes, a control grid, and an ion collector electrode. The electron-impact ionization of He, Ar, and...

  • An octopole electrodynamic balance for three-dimensional microparticle control. Zheng, F.; Qu, X.; Davis, E. J. // Review of Scientific Instruments;Aug2001, Vol. 72 Issue 8 

    A new octopole electrode design improves the particle trapping stability of an electrodynamic balance (EDB) and allows one to make three-dimensional force measurements on a trapped particle. A conventional double-ring EDB was modified by splitting each ring into four equal segments that are...

  • Area-selective deposition of organic conducting polymers on semiconductors: Polypyrrole-ZnO system. Okano, Mitsutoshi; Itoh, Kiminori; Kikuchi, Eiji; Fujishima, Akira // Journal of Applied Physics;9/1/1987, Vol. 62 Issue 5, p2143 

    Presents information on a study that performed area-selective deposition of polypyrrole by several procedures with electromechanical and photoelectromechanical techniques. Tools for organic conducting pattern generation and functionalization of electrode surfaces; Dissolution of zinc oxide...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics