Cyanated isoindigos for n-type and ambipolar organic thin film transistors

Cyanated isoindigos for n-type and ambipolar organic thin film transistors

A set of three core-cyanated isoindigos was synthesized by palladium-catalyzed cyanation of core-brominated isoindigos. With decreased LUMO level to -3.88 eV, the dicyanated isoindigo 5 showed ambient-stable electron mobility up to 0.044 cm(2) V(-1) s(-1) in OTFTs with SAMs of TPA, while it exhibite...

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Veröffentlicht in:Chemical communications (Cambridge, England) England), 2014-01, Vol.50 (5), p.545-547
Hauptverfasser: Yue, Wan, He, Tao, Stolte, Matthias, Gsänger, Marcel, Würthner, Frank
Format: Artikel
Sprache:eng
Schlagworte:
Charge transport
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Zusammenfassung:A set of three core-cyanated isoindigos was synthesized by palladium-catalyzed cyanation of core-brominated isoindigos. With decreased LUMO level to -3.88 eV, the dicyanated isoindigo 5 showed ambient-stable electron mobility up to 0.044 cm(2) V(-1) s(-1) in OTFTs with SAMs of TPA, while it exhibited ambipolar charge transport behaviour (0.11 cm(2) V(-1) s(-1) for electrons and 0.045 cm(2) V(-1) s(-1) for holes) on FOPA-modified substrates.
ISSN:1359-7345
1364-548X
DOI:10.1039/c3cc48037b