Synthesis and photovoltaic performance of the porphyrin based sensitizers with 2H-[1,2,3]triazolo[4,5-c]pyridine and benzotriazole as auxiliary acceptors

Porphyrin dyes containing benzotriazole and 2H-[1,2,3]triazolo[4,5-c]pyridine as auxiliary acceptors were synthesized for DSSCs. The dyes show broad absorption over the whole visible light.131