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Keywords:

  • nanotechnology;
  • organic electronics;
  • organic field-effect transistors;
  • polyelectrolytes;
  • printed electronics
Thumbnail image of graphical abstract

A polyelectrolyte is used as gate insulator material in organic field-effect transistors with self-aligned inkjet printed sub–micrometer channels. The small separation of the charges in the electric double layer at the electrolyte-semiconductor interface, which builds up in tens of microseconds, provides a very high transverse electric field in the channel that effectively suppresses short-channel effects at low applied gate voltages.