Electrochemical and spectroelectrochemical characterizations of phthalocyanines bearing peripherally tetra-4-carboxyethylenephenoxy anchoring groups and usage as photosensitizers of dye-sensitized solar cell

Effects of anchoring and spacer groups of asymmetric zinc phthalocyanines on the photovoltaic performance of dye-sensitized solar cells

“…22 To enhance the performance of DSSC-bearing MPcs, we recently reported a series of MPcs bearing different metal cations, anchoring and spacer groups 23,24 and we reached a maximum efficiency of 3.97% in power conversion with DSSC-bearing TiOPc peripherally substituted with tetra-4-carboxyethylenephenoxy. 25 As a continuity of our studies, we aim to increase the performance of DSSCs with new ZnPcs decorated with different anchoring and spacer groups to increase the performance we have achieved so far. For this reason, we prepared A 3 B type asymmetric ZnPc(6) bearing three benzoic acid and naphthoic acid anchoring groups, three benzene spacers, one naphthalene spacer and ZnPc (7) bearing three benzoic acid snchoring groups and one benzene spacer.…”