Synthesis and Physical Properties of Decylbithiophene End-Capped Oligomers Based on Naphthalene, Anthracene and Benzo[1,2-b:4,5-b']dithiophene

Abstract

The new candidates for OTFTs, which were composed of naphthalene, anthracene, benzo[1,2-b:4,5-b']dithiophene and 2-decylbithiophene end-capper were synthesized under Suzuki coupling reaction conditions. All of the oligomers were characterized by FT-IR, mass analysis, UV vis, PL spectrum, cyclic voltametry (CV), differential scanning calorimetry (DSC), thermal gravimetric analysis (TGA), H-1-NMR and C-13-NMR. Investigation of physical properties showed that all of the oligomers have higher oxidation potential and good thermal stability. Especially, DBT-DtB-DBT is soluble in common solvents and suitable for low cost processing technologies.