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Proceedings Paper

Curvature as design concept for semiconducting benzodithiophene-containing polymers in organic field effect transistors
Author(s): Ralph Rieger; Dirk Beckmann; Alexey Mavrinskiy; Wojciech Pisula; Marcel Kastler; Klaus Müllen
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Paper Abstract

Organic semiconductors are expected to play an important role in low-cost and energy-efficient electronic products, especially transistors. Our concept to improve the active materials is to introduce curvature into the polymer backbone. The beneficial contribution of the curvature is shown by a series of five isomeric polymers which demonstrate that an intermediate degree of curvature is the optimum compromise between good solubility and high order in the film. In this way, a polythiophene is developed that is easily synthesized, well soluble, exhibits high charge-carrier mobility using mild annealing conditions, and is stable under operation. When processed on a flexible substrate, it shows average mobilities as high as 0.5 cm2V-1s-1 .

Paper Details

Date Published: 17 August 2010
PDF: 7 pages
Proc. SPIE 7778, Organic Field-Effect Transistors IX, 777809 (17 August 2010); doi: 10.1117/12.859073
Show Author Affiliations
Ralph Rieger, Max-Planck-Institut für Polymerforschung (Germany)
Dirk Beckmann, Max-Planck-Institut für Polymerforschung (Germany)
Alexey Mavrinskiy, Max-Planck-Institut für Polymerforschung (Germany)
Wojciech Pisula, Max-Planck-Institut für Polymerforschung (Germany)
Marcel Kastler, Max-Planck-Institut für Polymerforschung (Germany)
Klaus Müllen, Max-Planck-Institut für Polymerforschung (Germany)

Published in SPIE Proceedings Vol. 7778:
Organic Field-Effect Transistors IX
Zhenan Bao; Iain McCulloch, Editor(s)

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