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Keywords:

  • organic electronics;
  • conjugated polymers;
  • electrolytes;
  • thin-film transistors;
  • semiconductor/electrolyte interfaces;
  • electrochemistry
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The dimensionality of charge transport (2D versus 3D) in an organic electrochemical transistor depends on the degree of advancement of the electrochemical half-reaction in the organic semi-conductor, which is here governed only by capaci-tive coupling. As reported by Xavier Crispin and co-workers on page 4764, such a transistor with a carbon nanotube network as the gate electrode leads to a bulk transport in the semiconductor.