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

Published online by Cambridge University Press:  24 January 2007

M. Kus ,
S. Demic ,
C. Zafer ,
G. Saygili ,
H. Bilgili  and
S. Icli
M. Kus
Affiliation:
Ege University, Solar Energy Institute, 35100 Bornova Izmir, Turkey Mugla University, Department of Chemistry, 48100 Mugla, Turkey
S. Demic
Affiliation:
Ege University, Solar Energy Institute, 35100 Bornova Izmir, Turkey
C. Zafer
Affiliation:
Ege University, Solar Energy Institute, 35100 Bornova Izmir, Turkey
G. Saygili
Affiliation:
Ege University, Solar Energy Institute, 35100 Bornova Izmir, Turkey
H. Bilgili
Affiliation:
Ege University, Solar Energy Institute, 35100 Bornova Izmir, Turkey
S. Icli*
Affiliation:
Ege University, Solar Energy Institute, 35100 Bornova Izmir, Turkey
*
[email protected]
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Abstract

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.

Keywords

Type
Research Article
Information
The European Physical Journal - Applied Physics , Volume 37 , Issue 3 , March 2007 , pp. 277 - 281
Copyright
© EDP Sciences, 2007

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Footnotes

*

This paper has been presented at “ECHOS06”, Paris, 28–30 juin 2006.

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