Zinc phthalocyanines photosensitization reactions

The interplay of different dye molecules present during the electrodeposition reactions of dye-modified ZnO was studied for zinc complexes of tetrasulfonated phthalocyanine (TSPcZn, Figure 4.4a) and tetraphenylporphyrin (TSTPPZn) in which case both dyes (Figure 4.4b) were simultaneously adsorbed to form a hybrid material with ZnO [258]. The typical absorption bands for both dyes were detected. Films of TSPcZn/ZnO consisted of larger particulate domains when compared with TSTPPZn/ZnO or (TSTPPZn + TSPcZn)/ZnO. The presence of the porphyrin stabilized the phthalocyanine on the ZnO since a greater amount of TSPcZn was adsorbed. In the photosensitization of ZnO, TSPcZn and TSTPPZn worked... 

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