Effects of chalcogen atom substitution on the optoelectronic and charge-transport properties in picene-type π-systemsElectronic supplementary information (ESI) available: Experimental procedures and characterization data. CCDC 1527053 (3). For ESI and crystallographic data in CIF or other electronic format see DOI: 10.1039/c7cc01292f

A series of π-conjugated 3,10-dialkyl-dinaphtho[1,2- b :2′,1′- d ]chalcogenophenes incorporating S, Se, and Te as the central chalcogen atom was newly synthesized, and their optoelectronic and charge-transport properties were systematically investigated. High carrier mobilities of up to 4.7 cm 2 V −1 s −1 were achieved for solution-processed organic field-effect transistors using these materials as p-channel organic semiconductors. π-Conjugated 3,10-dialkyl-dinaphtho[1,2- b :2′,1′- d ]chalcogenophenes incorporating S, Se, and Te as the central chalcogen atom were developed, and their optoelectronic and charge-transport properties were systematically investigated.