Room-temperature flexible thin film transistor with high mobility

Hsiao Hsuan Hsu, Chun Yen Chang, Chun Hu Cheng

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)


We report a room-temperature and high-mobility InGaZnO thin-film transistor on flexible substrate. To gain both high gate capacitance and low leakage current, we adopt stacked dielectric of Y2O3/TiO 2/Y2O3. This flexible IGZO TFT shows a low threshold voltage of 0.45 V, a small sub-threshold swing of 0.16 V/decade and very high field-effect mobility of 40 cm2/V. Such good performance is mainly contributed by improved gate stack structure and thickness modulation of IGZO channel that reduce the interface trap density without apparent mobility degradation.

Original languageEnglish
Pages (from-to)1459-1462
Number of pages4
JournalCurrent Applied Physics
Issue number7
Publication statusPublished - 2013


  • InGaZnO (igzo)
  • Thin film transistor (tft)

ASJC Scopus subject areas

  • General Materials Science
  • General Physics and Astronomy


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