From Easily Oxidized to Easily Reduced Thiophene-Based Materials

Abstract

Thiophene-based materials for n-type semiconductor devices? A new strategy towards this goal that consists of chemically transforming the thienyl sulfurs into the corresponding S,S-dioxides (see Figure) is described. This is shown—for quarter- and quinquethiophenes—to lead to very stable oligomers with increased electron delocalization and electron affinity.