AN ORGANIC FIELD EFFECT TRANSISTOR WITH IMPROVED CURRENT ON/OFF RATIO AND CONTROLLABLE THRESHOLD SHIFT

AN ORGANIC FIELD EFFECT TRANSISTOR WITH IMPROVED CURRENT ON/OFF RATIO AND CONTROLLABLE THRESHOLD SHIFT

The present invention provides a semiconductor device, especially an organic field effect transistor, comprising a layer comprising a polymer comprising repeating units having a diketopyrrolopyrrole skeleton (DPP polymer) and an acceptor compound having an electron affinity in vacuum of 4.6 eV, or m...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: HAYOZ, PASCAL, SCHMIDHALTER, BEAT, CHEBOTAREVA, NATALIA
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
ELECTRICITY
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Beschreibung
Zusammenfassung:The present invention provides a semiconductor device, especially an organic field effect transistor, comprising a layer comprising a polymer comprising repeating units having a diketopyrrolopyrrole skeleton (DPP polymer) and an acceptor compound having an electron affinity in vacuum of 4.6 eV, or more. The doping of the DPP polymer with the acceptor compound leads to an organic field effect transistor with improved hole mobility, current on/off ratio and controllable threshold shift.