Passivation of Poly-Si Thin Film Employing Si Self-Implantation and Its Application to TFTs

Rongsheng Chen, Wei Zhou*, Sunbin Deng, Meng Zhang, Man Wong, Hoi Sing Kwok

*Corresponding author for this work

Research output: Contribution to journalJournal Articlepeer-review

2 Citations (Scopus)

Abstract

Silicon self-implantation technique is applied to passivate the defects in the grain boundaries of the polycrystalline silicon (poly-Si) thin film. The implantation of Si with low dose is a precise technique of introducing Si interstitials in the poly-Si thin film. Thin film transistors fabricated on the resulting poly-Si thin film exhibit improved device characteristics. The increased field-effect mobility is attributed to the incorporation of the injected silicon interstitials in the grain boundaries of the poly-Si thin film and reduction of defect density.

Original languageEnglish
Article number8267190
Pages (from-to)240-244
Number of pages5
JournalIEEE Journal of the Electron Devices Society
Volume6
Issue number1
DOIs
Publication statusPublished - 22 Jan 2018

Bibliographical note

Publisher Copyright:
© 2013 IEEE.

Keywords

  • Silicon self-implantation
  • polycrystalline silicon
  • thin-film transistors (TFTs)

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