Transistor Paint: High Mobilities in Small Bandgap Polymer Semiconductor Based on the Strong Acceptor, Diketopyrrolopyrrole and Strong Donor, Dithienopyrrole



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A narrow bandgap, strong donor-acceptor polymer semiconductor is presented. This “transistor paint” material exhibits hole mobilities as high as 0.41 cm2/Vs. Importantly, the semiconductor yields high reproducible mobility values of 0.28 cm2/Vs ± 0.019 for a range of channel lengths when measured from several transistors on different days.