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17 August 2010 New triindole-based organic semiconductors: structure-property relationships
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We introduce a new family of stable high-mobility organic π-type semiconductors based on the electron-rich 10,15- dihydro-5H-diindolo[3,2-a:3',2'-c]carbazole (triindole) extended π-conjugated system. This platform tends to form columnar stacks of the aromatic cores maximizing π-orbital overlap between adjacent molecules, thus paving the way for the one-dimensional migration of charge carriers along the columns. In addition these compounds have two different types of positions that can be functionalized independently offering the possibility of tuning their electronic properties as well as their morphology through chemical functionalization. The integration of the optimized triindole derivatives into solution processed devices as active layer is explored in this work.
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E. M. García-Frutos, C. Coya, E. Gutierrez, A. Monge, A. de Andrés, and B. Gómez-Lor "New triindole-based organic semiconductors: structure-property relationships", Proc. SPIE 7778, Organic Field-Effect Transistors IX, 777806 (17 August 2010);

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