• Login
    View Item 
    •   SMARTech Home
    • College of Engineering (CoE)
    • School of Materials Science and Engineering (MSE)
    • School of Materials Science and Engineering Publications and Presentations
    • View Item
    •   SMARTech Home
    • College of Engineering (CoE)
    • School of Materials Science and Engineering (MSE)
    • School of Materials Science and Engineering Publications and Presentations
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    A thin film triode type carbon nanotube field emission cathode

    Thumbnail
    View/Open
    CNT_FE_paper_Appl Phys A_Rev1_final.pdf (929.2Kb)
    Date
    2013-08
    Author
    Sanborn, Graham
    Turano, Stephan
    Collins, Peter
    Ready, W. Jud
    Metadata
    Show full item record
    Abstract
    The field electron emission of carbon nanotubes has been heavily studied over the past two decades for various applications, such as in display technologies, microwave amplifiers, and spacecraft propulsion. However, a commercializable lightweight and internally gated electron source has yet to be realized. This work presents the fabrication and testing of a novel internally gated carbon nanotube field electron emitter. Several specific methods are used to prevent electrical shorting of the gate layer, a common failure for internally gated devices. A unique design is explored where the etch pits extend into the Si substrate and isotropic etching is used to create a lateral buffer zone between the gate and carbon nanotubes. Carbon nanotubes are self-aligned to and within 10 microns from the gate, which creates large electric fields at low potential inputs. Initial tests confirm high field emission performance with an anode current density (based on total area of the device) of 293 μA cm-2 and a gate current density of 1.68 mA cm-2 at 250 V.
    URI
    http://hdl.handle.net/1853/48668
    Collections
    • School of Materials Science and Engineering Publications and Presentations [7]

    Browse

    All of SMARTechCommunities & CollectionsDatesAuthorsTitlesSubjectsTypesThis CollectionDatesAuthorsTitlesSubjectsTypes

    My SMARTech

    Login

    Statistics

    View Usage StatisticsView Google Analytics Statistics
    • About
    • Terms of Use
    • Contact Us
    • Emergency Information
    • Legal & Privacy Information
    • Accessibility
    • Accountability
    • Accreditation
    • Employment
    • Login
    Georgia Tech

    © Georgia Institute of Technology

    • About
    • Terms of Use
    • Contact Us
    • Emergency Information
    • Legal & Privacy Information
    • Accessibility
    • Accountability
    • Accreditation
    • Employment
    • Login
    Georgia Tech

    © Georgia Institute of Technology