| In this study the synthesis and characterization of meso-substituted Sn and Co porphyrin nanostructures were carried out. The effect of pH of medium on the formation of Sn/Coporphyrin nanostructures was studied. The formation process is caused by the net charge on the porphyrin, which is controlled by protonation/deprotonation of the oppositely charged periphery.This charge determines also stoichiometric ratios of porphyrins in the nanostructures. It was found that the contact of the donor (Co-porphyrin) with acceptor (Sn-porphyrin) provides photoconductivity of nanostructures under illumination with visible light. It was shown that the increase of temperature decreases their conductance both in the dark and under illumination. |
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