The search for organic semiconductors suitable to produce flexible, lightweight, and cost- effective devices is the focus of many research groups around the globe. 1, 2 There is a particular interest in organic field-effect transistors which may be used in various applications such as RFID tags. 3, 4 Great advances have been achieved, pushing upfield- effect mobilities almost to the regime of amorphous silicon. 5-7 Especially thiophene- ...
