Cyclic Voltammetry of Phthalocyanines

Abstract

Phthalocyanines and their related compounds possess similar structures as porphyrins. They have been used as green to blue dyes and pigments since their discovery. In this decade, they are known to be utilized in important functional colorants for many fields such as catalyst, laser light absorbers in data storage systems, electrocharge carriers in photocopies, photo-antenna device in photosynthesis, photovoltaic cells and photosensitizers for dye-sensitized solar cells (DSSCs), and photodynamic therapy of cancer (PDT). The functions are attributed to high electron transfer abilities of phthalocyanines. Cyclic voltammograms were carried out for phthalocyanines in order to estimate their electron transfer abilities and electrochemical mechanism.

Influence of Heat Treatment on Surface, Structural and Optical Properties of Nickel and Copper Phthalocyanines Thin Films

“…According to Ding et al [ 39 ], the cathodic processes at −0.16 V/(Ag/AgCl) and −0.21 V/(Ag/AgCl) can be ascribed to the oxygen reduction, which is more evident in the case of NiPc in the β form. The anodic peaks of the second cycle located at 0.77 V/(Ag/AgCl) and 0.88 V/(Ag/AgCl) can be assigned to the interaction between the phthalocyanine macro-ring and the central metal [ 40 ].…”