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STM observation of surface transfer doping mechanism in 3 keV nitrogen ion implanted UNCD films

  • B. Sundaravel*
  • , Kalpataru Panda
  • , R. Dhandapani
  • , B. K. Panigrahi
  • , K. G.M. Nair
  • , I. Nan Lin
  • *Corresponding author for this work

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

    Abstract

    3 keV nitrogen ions are implanted into UNCD/Si from our 30 kV ion accelerator. Field emission property is enhanced upon nitrogen implantation in comparision to as-prepared UNCD. STM shows that there is agglomeration of diamond grains. CITS measurements show that diamond grains are the prominent electron emitters while grain boundaries were the prominent emitters for 75 keV N+ implantation. When N atoms are at the surface, electron emission by transfer-doping process appears to be the physical mechanism involved. When they are buried deeper as in the case of 75 keV ions, grain boundary conduction-channel process is valid.

    Original languageEnglish
    Title of host publicationSolid State Physics - Proceedings of the 57th DAE Solid State Physics Symposium 2012
    Pages384-385
    Number of pages2
    DOIs
    Publication statusPublished - 2013
    Event57th DAE Solid State Physics Symposium 2012 - Bombay, Mumbai, India
    Duration: 03-12-201207-12-2012

    Publication series

    NameAIP Conference Proceedings
    Volume1512
    ISSN (Print)0094-243X
    ISSN (Electronic)1551-7616

    Conference

    Conference57th DAE Solid State Physics Symposium 2012
    Country/TerritoryIndia
    CityBombay, Mumbai
    Period03-12-1207-12-12

    All Science Journal Classification (ASJC) codes

    • General Physics and Astronomy

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