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Keywords:

  • Field-effect transistors, organic;
  • Hygroscopic materials;
  • Poly(3-hexylthiophene)
Thumbnail image of graphical abstract

An organic transistor is presented, showing a one-hundred-fold increase in current level at operating voltages around 1 V and excellent current modulation (see Figure) resulting from the ionic effects present in the hygroscopic insulator when operated in ambient atmosphere.