Polythiophenes are among the most studied organic semiconductors and they have found widespread use as the active material in organic field-effect transistors and as the electron donor component in organic photovoltaic devices. Here, we investigate how subtle structural modifications of archetypical polythiophenes such as poly(3-hexylthiophene) (P3HT) affect the optical, structural and electrical properties of the resulting polymer thin films. We furthermore discuss the implications of these structural modification for binary systems incorporating molecular dopants.

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Christian Nielsen, "Charge transport and doping in structurally modified polythiophenes (Conference Presentation)," Proc. SPIE 11097, Organic and Hybrid Field-Effect Transistors XVIII, 110970T (Presented at SPIE Organic Photonics + Electronics: August 15, 2019; Published: 10 September 2019); https://doi.org/10.1117/12.2528329.6083883521001.