Bulky end-capped [1]benzothieno[3,2-b]benzothiophenes : reaching high-mobility organic semiconductors by fine tuning of the crystalline solid-state order

Schweicher, Guillaume and Lemaur, Vincent and Niebel, Claude and Ruzié, Christian and Diao, Ying and Goto, Osamu and Lee, Wen-Ya and Kim, Yeongin and Arlin, Jean-Baptiste and Karpinska, Jolanta and Kennedy, Alan R. and Parkin, Sean R. and Olivier, Yoann and Mannsfeld, Stefan C. B. and Cornil, Jérôme and Geerts, Yves H. and Bao, Zhenan (2015) Bulky end-capped [1]benzothieno[3,2-b]benzothiophenes : reaching high-mobility organic semiconductors by fine tuning of the crystalline solid-state order. Advanced Materials, 27 (19). pp. 3066-3072. ISSN 1521-4095

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    Abstract

    A series of bulky end-capped [1]benzothieno[3,2-b]benzothiophenes (BTBTs) are developed in order to tune the packing structure via terminal substitution. A coupled theoretical and experimental study allows us to identify 2,7-di-tert-butylBTBT as a new high-performance organic semiconductor with large and well-balanced transfer integrals, as evidenced by quantum-chemical calculations. Single-crystal field-effect transistors show a remarkable average saturation mobility of 7.1 cm(2) V(-1) s(-1) .