Extremely low bias electron emitter from electric field induced reconstructed tungsten tip

F. H.M.Faridur Rahman, Fouzia Khanom, Seigi Mizuno, Hiroshi Tochihara

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    This report describes a new modification technique of tungsten tip, which results a tip apex capable of emitting electrons at extremely low bias voltages. By employing positive electric field the structure of the tip apex is switched in presence of oxygen followed by freezing out the modified structure at low temperature. Thus modified tip exhibit an extraordinary two orders decrease in applied bias needed for electron emission (from 300V or 210V to as low as 0 to 4V). Electron emission shows good angular confinement with an opening angle of less than 2°.

    Original languageEnglish
    Title of host publicationProceedings of 4th International Conference on Electrical and Computer Engineering, ICECE 2006
    PublisherIEEE Computer Society
    Pages48-51
    Number of pages4
    ISBN (Print)9843238141, 9789843238146
    DOIs
    Publication statusPublished - Jan 1 2006
    Event4th International Conference on Electrical and Computer Engineering, ICECE 2006 - Dhaka, Bangladesh
    Duration: Dec 19 2006Dec 21 2006

    Publication series

    NameProceedings of 4th International Conference on Electrical and Computer Engineering, ICECE 2006

    Other

    Other4th International Conference on Electrical and Computer Engineering, ICECE 2006
    CountryBangladesh
    CityDhaka
    Period12/19/0612/21/06

    All Science Journal Classification (ASJC) codes

    • Computer Science(all)
    • Control and Systems Engineering
    • Electrical and Electronic Engineering

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