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MORPHOLOGICAL PROPERTIES AND PHOTOCONDUCTIVITY OF SELF-ASSEMBLED Sn/Co PORPHYRIN NANOSTRUCTURES

Influence of Meso-substitution of the Porphyrin Ring on Enhanced Hydrogen Evolution in a Photochemical SystemGraphical abstract

E.A. Koposova, A.A. Pendin, Y.E. Ermolenko, G.I. Shumilova, A.A. Starikova and Y.G. Mourzina

Published in: Rev.Adv.Mater.Sci. (RAMS) No 1/2, Vol. 45, pp. 15-19, 2016

URL: http://www.ipme.ru/e-journals/RAMS/no_14516/03_14516_koposova.pdf

Abstract: 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/Co-porphyrin 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 photoconductance 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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