Organic electronics is a rapidly expanding field: organic light-emitting diodes are found in the latest smartphone displays and organic photovoltaics are beginning to be deployed commercially in certain applications.All of these devices are made of organic molecules that can conduct electricity,but despite the technological progress,the fundamental mechanisms of electrical conduction in organic semiconductors have been incompletely understood.The most common approach has been to assume that charges hop from one molecule to another,but this assumption can underestimate charge mobilities by an order of magnitude or more.The Kassal group at the University of Sydney has recently uncovered that even small amounts of intermolecular delocalisation can dramatically enhance carrier mobilities(Balzer D.,Smolders T.J.A.M.,Blyth D.,Hood S.N.,Kassal I.Chem.Sci.2021,doi.org/10.1039/D0SC04116E).
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