Electroactive layer-by-layer films of iron tetrasulfonated phthalocyanine
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Data
2003-04-04
Autores
Zucolotto, V
Ferreira, M.
Cordeiro, M. R.
Constantino, CJL
Moreira, W. C.
Oliveira, O. N.
Título da Revista
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Título de Volume
Editor
Elsevier B.V.
Resumo
Electroactive films of iron tetrasulfonated phthalocyanine (FeTsPc) were assembled via the electrostatic layer-by-layer technique (LBL), in which FeTsPc layers were alternated with the polycationic poly(allylamine hydrochloride) (PAN). The multilayer formation was monitored via UV-Vis spectroscopy by measuring the increase in the Q Band of FeTsPc at 676 nm. Film thickness was estimated by profilometry as ca. 10 Angstrom per bilayer. Fourier transform infrared and UV-Vis absorption spectroscopy suggested specific interactions between FeTsPc and PAR Cyclic voltammograms showed reproducible pairs of oxidation-reduction peaks at 0.92 mV and 0.70 mV, respectively, for a 50-bilayer PAH/FeTsPc film at 50 mV/s (vs Ag/AgNO3).
Descrição
Palavras-chave
layer by layer, phthalocyanines, electrochemical methods, organic/inorganic interfaces
Como citar
Synthetic Metals. Lausanne: Elsevier B.V. Sa, v. 137, n. 1-3, p. 945-946, 2003.