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Ni implantation-induced enhancement of the crystallisation of amorphous Si

  • Young-Woo Ok
  • , Tae-Yeon Seong*
  • , Chel-Jong Choi
  • , K. N. Tu
  • *Corresponding author for this work

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

Abstract

We report on the effect of Ni implantation on the crystallisation process of amorphous Si formed by ion implantation during excimer laser annealing. Scanning transmission electron microscopy and X-ray photoemission spectroscopy results show that NiSi2 precipitates are formed in the Si-Ni-implanted samples. It is shown that the Ni implantation results in the enhanced crystallisation of amorphous Si during laser annealing. The Si-Ni-implanted samples become epitaxial to the Si substrate at 600 mJ/cm2, while the Si-implanted samples produce epitaxial relationship at 800 mJ/cm2. Possible mechanisms by which implanted Ni atoms play a role are given to describe the enhanced crystallisation process of amorphous Si. © Springer Science+Business Media, LLC 2006.
Original languageEnglish
Pages (from-to)979-985
JournalJournal of Materials Science: Materials in Electronics
Volume17
Issue number12
Online published1 Sept 2006
DOIs
Publication statusPublished - Dec 2006
Externally publishedYes

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