Single crystalline microribbons of perylo[1,12-b,c,d]selenophene for high performance transistors

摘要

Micrometer sized single crystalline ribbons of a Se-heterocyclic annelated perylene were prepared by drop casting and physical vapor transport techniques. The crystals of the Se-heterocyclic annelated perylene showed near planar molecular conformation, which regularly stacked along b-axis with Se…Se contacts at 3.49 A. Single crystal transistors of individual ribbon were fabricated by "gold layer glue" technique. Over 90% transistors exhibited mobility >1.6 cm~2 V~(-1) s~(-1), the highest mobility approaching 2.66 cm~2V~(-1)s~(1-). The top performance indicated the bright prospect of this material in organic electronics.