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Y6 Organic Thin-Film Transistors with Electron Mobilities of 2.4 cm2 V-1 s-1 via Microstructural Tuning.


ABSTRACT: There is a growing demand to attain organic materials with high electron mobility, μe , as current reliable reported values are significantly lower than those exhibited by their hole mobility counterparts. Here, it is shown that a well-known nonfullerene-acceptor commonly used in organic solar cells, that is, BTP-4F (aka Y6), enables solution-processed organic thin-film transistors (OTFT) with a μe as high as 2.4 cm2  V-1  s-1 . This value is comparable to those of state-of-the-art n-type OTFTs, opening up a plethora of new possibilities for this class of materials in the field of organic electronics. Such efficient charge transport is linked to a readily achievable highly ordered crystalline phase, whose peculiar structural properties are thoroughly discussed. This work proves that structurally ordered nonfullerene acceptors can exhibit intrinsically high mobility and introduces a new approach in the quest of high μe organic materials, as well as new guidelines for future materials design.

SUBMITTER: Gutierrez-Fernandez E 

PROVIDER: S-EPMC8728851 | biostudies-literature |

REPOSITORIES: biostudies-literature

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