Oligothiophene-Based Networks Applied for Field-Effect Transistors

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Abstract

A new type of semiconducting material based on polymerizable oligothiophenes (see Figure) has been prepared. In field-effect transistors, a charge-carrier mobility of 10–3 cm2 V–1 s–1 is observed prior to polymerization. Photopolymerization to a polymer network provides mechanical stability and allows direct photopatterning of the semiconductor. These materials also appear more stable to oxidative doping than polythiophenes.

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