We report the effect of anneal time on the performance and temperature stability of hydrogenated amorphous silicon (a-Si:H) thin-film-transistors (TFTs). The subthreshold swing and off-current are reduced by a factor of 2.5 and by almost 2 orders of magnitude for 48 h annealed TFTs, respectively, when compared to unannealed TFTs. Furthermore, long annealed TFTs show significant temperature stability when compared to the unannealed TFTs. The subthreshold swing, hysteresis, electron mobility, and off-current are stable even at elevated temperatures. The stability at elevated temperatures and better performance of long annealed TFTs are attributed to improved a-Si:H channel and/or the a-Si:H/insulator interface.

Original languageEnglish (US)
Pages (from-to)H467-H470
JournalElectrochemical and Solid-State Letters
Issue number12
StatePublished - Oct 29 2010

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Materials Science(all)
  • Physical and Theoretical Chemistry
  • Electrochemistry
  • Electrical and Electronic Engineering


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