Interrogating vertically oriented carbon nanofibers with nanomanipulation for nanoelectromechanical switching applications

Kaul, Anupama B.; Khan, Abdur R.; Bagge, Leif; Megerian, Krikor G.; LeDuc, Henry G.; Epp, Larry
August 2009
Applied Physics Letters;8/31/2009, Vol. 95 Issue 9, p093103
Academic Journal
We have demonstrated electrostatic switching in vertically oriented carbon nanofibers synthesized on refractory metallic nitride substrates, where pull-in voltages Vpi ranged from 10 to 40 V. A nanoprobe was used as the actuating electrode inside a scanning-electron microscope and van der Waals interactions at these length scales appeared significant, suggesting such structures are promising for nonvolatile memory applications. A finite element model was also developed to determine a theoretical Vpi and results were compared to experiment. Nanomanipulation tests also revealed tubes synthesized directly on Si by dc plasma-enhanced chemical-vapor deposition with ammonia and acetylene were electrically unsuitable for dc nanoelectromechanical switching applications.


Related Articles

  • A tuning fork based wide range mechanical characterization tool with nanorobotic manipulators inside a scanning electron microscope. Acosta, Juan Camilo; Hwang, Gilgueng; Polesel-Maris, Jérôme; Régnier, Stéphane // Review of Scientific Instruments;Mar2011, Vol. 82 Issue 3, p035116 

    This study proposes a tuning fork probe based nanomanipulation robotic system for mechanical characterization of ultraflexible nanostructures under scanning electron microscope. The force gradient is measured via the frequency modulation of a quartz tuning fork and two nanomanipulators are used...

  • A bi-stable nanoelectromechanical non-volatile memory based on van der Waals force. Soon, Bo Woon; Jiaqiang Ng, Eldwin; Qian, You; Singh, Navab; Julius Tsai, Minglin; Lee, Chengkuo // Applied Physics Letters;7/29/2013, Vol. 103 Issue 5, p053122 

    By using complementary-metal-oxide-semiconductor processes, a silicon based bi-stable nanoelectromechanical non-volatile memory is fabricated and characterized. The main feature of this device is an 80 nm wide and 3 μm high silicon nanofin (SiNF) of a high aspect ratio (1:35). The switching...

  • Microwave switches based on graphene. Dragoman, M.; Dragoman, D.; Coccetti, F.; Plana, R.; Muller, A. A. // Journal of Applied Physics;Mar2009, Vol. 105 Issue 5, pN.PAG 

    We investigated a double-clamped graphene device positioned over a planar waveguide in which propagate electromagnetic fields up to 60 GHz. Several double-clamped graphene flakes display good characteristics in enabling and disabling the propagation of high-frequency electromagnetic fields. The...

  • The effect of heat treatment on mechanical properties of carbon nanofiber reinforced copper matrix composites. Jianli Kang; Nash, Philip; Jiajun Li; Chunsheng Shi; Naiqin Zhao; Sijie Gu // Journal of Materials Science;Oct2009, Vol. 44 Issue 20, p5602 

    The effect of heat treatment of carbon nanofibers (CNFs) on the mechanical properties of CNF (Ni/Y)–Cu composites was investigated. CNF (Ni/Y)–Cu composite powder mixtures were prepared by a combination of in situ chemical vapor deposition (CVD) and co-deposition processes. The in...

  • CVD grown single walled carbon nanotubes (SWNTs) in organic solvents. Gupta, Meenakshi; Malhotra, Sanjana; Chopra, Shefali; Maheshwari, Richa // AIP Conference Proceedings;11/6/2010, Vol. 1324 Issue 1, p394 

    Carbon nanotubes (CNTs) have shown promise for development of several electrical and structural applications. Growing nanotubes with controlled diameter and bandgap, preparing their uniform and stable dispersions, fabrications of reliable and repeatable devices on wafer scale, are some of the...

  • Van der Waals epitaxy and characterization of hexagonal boron nitride nanosheets on graphene. Song, Yangxi; Zhang, Changrui; Li, Bin; Ding, Guqiao; Jiang, Da; Wang, Haomin; Xie, Xiaoming // Nanoscale Research Letters;Dec2014, Vol. 9 Issue 1, p1 

    Graphene is highly sensitive to environmental influences, and thus, it is worthwhile to deposit protective layers on graphene without impairing its excellent properties. Hexagonal boron nitride (h-BN), a well-known dielectric material, may afford the necessary protection. In this research, we...

  • LOOK AGAIN.  // MRS Bulletin;Feb2015, Vol. 40 Issue 2, p192 

    No abstract available.

  • Measured long-range repulsive Casimir–Lifshitz forces. Munday, J. N.; Capasso, Federico; Parsegian, V. Adrian // Nature;1/8/2009, Vol. 457 Issue 7226, p170 

    Quantum fluctuations create intermolecular forces that pervade macroscopic bodies. At molecular separations of a few nanometres or less, these interactions are the familiar van der Waals forces. However, as recognized in the theories of Casimir, Polder and Lifshitz, at larger distances and...

  • Size-dependent elastic properties of crystalline polymers via a molecular mechanics model. Zhao, Junhua; Guo, Wanlin; Zhang, Zhiliang; Rabczuk, Timon // Applied Physics Letters;12/12/2011, Vol. 99 Issue 24, p241902 

    An analytical molecular mechanics model is developed to obtain the size-dependent elastic properties of crystalline polyethylene. An effective 'stick-spiral' model is adopted in the polymer chain. Explicit equations are derived from the Lennard-Jones potential function for the van der Waals...


Read the Article


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

Try another library?
Sign out of this library

Other Topics