All-solution-processed fabrication of organic transistors on paper

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We acheved area-selective crystal growth of organic semiconductors by pattening of surface functionality. By use of this technique, we developed an all-solution-processed fabrication method for organic field-effecgt transistor arrays. This bottom-up method can be carried out under ambient atmosphere without use of vacuum apparatuses. The low processing temperature allows use of plastic as a substrate so that fabrication of flexible electronics devices becomes possible by facile printing technologies.