A meso-meso directly linked porphyrin dimer-based double D-pi-A sensitizer for efficient dye-sensitized solar cells

摘要

A novel double D-pi-A branched dye (JY07) was synthesized and applied as a sensitizer for DSSCs. JY07 exhibited broader and stronger light absorption capability than the single D-pi-A dye (JY06). In the meantime, the orthogonal conformation of JY07 was found to be favorable for impeding intermolecular aggregation. Consequently, a power conversion efficiency of 5.33 was achieved under AM 1.5G conditions.