Small-subthreshold-swing and low-voltage flexible organic thin-film transistors which use HfLaO as the gate dielectric

M. F. Chang*, Po-Tsung Lee, S. P. McAlister, Albert Chin

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

54 Scopus citations

Abstract

Pentacene organic thin-film transistors (OTFTs) with a high-κ HfLaO dielectric were integrated onto flexible polyimide substrates. The pentacene OTFTs exhibited good performance, such as a low subthreshold swing of 0.13 V/decade and a threshold voltage of -1.25 V. The field-effect mobility was 0.13 cm2/V · s at an operating voltage as low as only 2.5 V. These characteristics are attractive for high-switching-speed and low-power applications.

Original languageEnglish
Pages (from-to)133-135
Number of pages3
JournalIEEE Electron Device Letters
Volume30
Issue number2
DOIs
StatePublished - 9 Jan 2009

Keywords

  • Flexible
  • HfLaO
  • High-κ
  • Organic thin-film transistors (OTFTs)
  • Pentacene

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