Spectrophotochemical and electrochemical characterization of perylene derivatives adsorbed on nanoporous metaloxide films

Electrochemistry of perylene imide and anhydride derivatives adsorbed on semiconductor TiO2 (NT) and insulator Al2O3 (NA) metal oxide films were presented. Adsorption rates on metal oxide surface are observed to be strongly depending on molecular structure. Monoanhydride-monoimide derivatives show t...

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Veröffentlicht in:	European physical journal. Applied physics 2007-03, Vol.37 (3), p.277-281
Hauptverfasser:	Kus, M., Demic, S., Zafer, C., Saygili, G., Bilgili, H., Icli, S.
Format:	Artikel
Sprache:	eng
Schlagworte:	81.05.Lg 81.07.-b Chemistry Cross-disciplinary physics: materials science rheology Electrochemistry Exact sciences and technology General and physical chemistry Materials science Miscellaneous (electroosmosis, electrophoresis, electrochromism, electrocrystallization, ...) Nanoscale materials and structures: fabrication and characterization Other materials Other topics in nanoscale materials and structures Physics Specific materials
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Zusammenfassung:	Electrochemistry of perylene imide and anhydride derivatives adsorbed on semiconductor TiO2 (NT) and insulator Al2O3 (NA) metal oxide films were presented. Adsorption rates on metal oxide surface are observed to be strongly depending on molecular structure. Monoanhydride-monoimide derivatives show two reversible reductions in solution and one reversible reduction in films. Color change from red to blue and violet is observed indicating the formation of monoanion and dianion radicals. Spectroelectrochemical measurements support this interpretation. The color reversal is quite stable in NA films in comparison with NT films.
ISSN:	1286-0042 1286-0050
DOI:	10.1051/epjap:2007011