Synthesis of Dendritic Oligothiophenes and Their Self-Association Properties by Intermolecular π−π Interactions

The addition of oligothiophene into a dendritic structure causes a self-association behavior by intermolecular π−π interactions in a solution and in a solid state. Increasing the generation of the dendritic structure gives not only a high association constant but also sufficient field-effect hole mobility, which indicates that the charge-transporting passes are formed by the strong π−π interactions.