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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