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Keywords:

  • inkjet printing;
  • short-channel transistors;
  • lithography-free;
  • photodetectors
Thumbnail image of graphical abstract

Inkjet-printed short-channel polymer transistors exhibit a high performance (μavg = 1.20 cm2 V−1 s−1). With a 50 μm orifice nozzle, polymer transistors with a sub-micrometer (700 nm) channel length are mass-fabricated with good uniformity and reproducibility. In addition, owing to the device geometry, an ultrahigh photoresponsivity up to 106 A W−1 is achieved, which realizes economical, lithography-free photodetectors.