Photosensitization and the photocurrent switching effect in nanocrystalline titanium dioxide functionalized with iron(II) complexes : a comparative study

Bibliographic description

title:	Photosensitization and the photocurrent switching effect in nanocrystalline titanium dioxide functionalized with iron(II) complexes : a comparative study
author:	Macyk Wojciech , Stochel Grażyna , Szaciłowski Konrad
journal title:	Chemistry : a European Journal
volume:	13
issue:	20
date of publication :	2007
pages:	5676-5687
ISSN:	0947-6539
eISSN:	1521-3765
DOI:	10.1002/chem.200700226
language:	English
journal language:	English
abstract in English:	Selected iron(II) complexes (ferrocene, ferrocenylboronic acid, hexacyanoferrate(II)) have been used as photosensitizers of titanium dioxide. Various types of electronic interactions between the surface complex and the semiconducting support are reflected in different yields of photocurrent generated upon visible-light irradiation and different efficiencies of the photosensitization effect. The studied systems, showing the photocurrent switching upon changes of electrode potential and energy of photons (the PEPS effect), are good models of simple photoelectrochemical logic devices. The mechanism of photosensitization and photocurrent switching is discussed with respect to the type of surface-complex-support interaction. Quantum-mechanical calculations support the proposed mechanisms.
affiliation:	Wydział Chemii : Zakład Chemii Nieorganicznej
type:	journal article
subtype:	academic paper

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