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Bulky End-Capped [1]Benzothieno[3,2-b]benzothiophenes: Reaching High-Mobility Organic Semiconductors by Fine Tuning of the Crystalline Solid-State Order

par Schweicher, Guillaume ;Lemaur, Vincent;Niebel, Claude ;Ruzié, Christian ;Diao, Ying;Goto, Osamu;Lee, Wen Ya;Kim, Yeongin;Arlin, Jean-Baptiste ;Karpinska, Jolanta ;Kennedy, Alan Robert;Parkin, Sean R.;Olivier, Yoann;Mannsfeld, Stefan;Cornil, Jérôme ;Geerts, Yves ;Bao, Zhenan
Référence Advanced materials, 27, 19, page (3066-3072)
Publication Publié, 2015-05-20

Article révisé par les pairs

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Résumé :

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 cm2 V-1 s-1.