Now showing items 1-4 of 4

    • A method to obtain a Ragone plot for evaluation of carbon nanotube supercapacitor electrodes 

      Raut, AS; Parker, CB; Glass, JT (Journal of Materials Research, 2010-08-01)
      Electrochemical double layer capacitors, also referred to as supercapacitors, are a promising technology in the field of energy storage. Carbon nanotube (CNT)-based supercapacitors are particularly interesting because of ...
    • Analysis of 3-panel and 4-panel microscale ionization sources 

      Natarajan, S; Parker, CB; Piascik, JR; Gilchrist, KH; Stoner, BR; Glass, JT (Journal of Applied Physics, 2010-06-15)
      Two designs of a microscale electron ionization (EI) source are analyzed herein: a 3-panel design and a 4-panel design. Devices were fabricated using microelectromechanical systems technology. Field emission from carbon ...
    • Graphenated carbon nanotubes for enhanced electrochemical double layer capacitor performance 

      Stoner, BR; Raut, AS; Brown, B; Parker, CB; Glass, JT (Applied Physics Letters, 2011-10-31)
      This letter reports on nucleation and growth of graphene foliates protruding from the sidewalls of aligned carbon nanotubes (CNTs) and their impact on the electrochemical double-layer capacitance. Arrays of CNTs were grown ...
    • On-chip electron-impact ion source using carbon nanotube field emitters 

      Bower, CA; Gilchrist, KH; Piascik, JR; Stoner, BR; Natarajan, S; Parker, CB; Wolter, SD; ... (8 authors) (Applied Physics Letters, 2007-03-30)
      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 ...