New p-n diblock and triblock oligomers: Effective tuning of HOMO/LUMO energy levels

Article abstract of DOI:10.1016/j.tetlet.2006.02.001

A new series of oligomers consisting of thiophene as p-type unit and oxadiazole as n-type unit were synthesized, and their photophysical and electrochemical properties were evaluated. Cyclic voltammography studies demonstrated that the electronic properties of the p-n diblock oligomers could be modulated by changing the number of thiophene and oxadiazole rings. The molecular regiochemical effect to the electrochemical and optical properties was also investigated.