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In article number 1804032, Frank Würthner and co‐workers fabricate single‐crystal field‐effect transistors of three stereoisomers of a chiral diketopyrrolopyrrole‐based organic semiconductor, and mixtures thereof, by sublimation in air, yielding p‐channel charge‐carrier mobilities as high as 3.4 cm2 V−1 s−1 under ambient conditions. Distinct differences in the hole transport are related to the individual...
Many organic semiconductors (OSCs) inherit chiral alkyl chains, which ensure the desirable high solubility for solution‐processing but may also lead to disorder, inhomogeneous film‐formation, as well as interfacial defects due to the presence of mixtures of stereoisomers or diastereomers, which impair their peak performance. Here, single‐crystal field‐effect transistors (SCFETs) of a diketopyrrolopyrrole‐based...
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