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Keywords:

  • Displays;
  • Field-effect transistors;
  • Organic field-effect transistors;
  • Silicon
Thumbnail image of graphical abstract

The electrical instability of organic field-effect transistors is investigated. We observe that the threshold-voltage shift (see figure) shows a stretched- exponential time dependence under an applied gate bias. The activation energy of 0.6 eV is common for our and all other organic transistors reported so far. The constant activation energy supports charge trapping by residual water as the common origin.