Porphyrins with β-acetylene-bridged functional groups for efficient dye-sensitized solar cells

Abstract

A series of porphyrins with mono or double acetylene-bridged functional groups at pyrrolic β-positions were synthesized and a systematic study on the β-substituents in porphyrin-sensitized solar cells demonstrates the superiority of the double-phenylcarboxyl anchor, leading to over 90% IPCE and an overall efficiency of 5.7%.