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

Abstract

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 Å. Single crystal transistors of individual ribbon were fabricated by “gold layer glue” technique. Over 90% transistors exhibited mobility >1.6 cm2 V−1 s−1, the highest mobility approaching 2.66 cm2 V−1 s−1. The top performance indicated the bright prospect of this material in organic electronics.