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Published on: November 7, 2016
Solution-processed small molecule-polymer blend organic thin-film transistors with hole mobility greater than 5
Jeremy Smith1, Weimin Zhang, Rachid Sougrat
1Centre for Plastic Electronics and Department of Physics, Blackett Laboratory, Imperial College London, UK.
Abstract:
Using phase-separated organic semiconducting blends containing a small molecule, as the hole transporting material, and a conjugated amorphous polymer, as the binder material, we demonstrate solution-processed organic thin-film transistors with superior performance characteristics that include; hole mobility >5 cm(2) /Vs, current on/off ratio ≥10(6) and narrow transistor parameter spread. These exceptional characteristics are attributed to the electronic properties of the binder polymer and the advantageous nanomorphology of the blend film.
