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Nanoparticulate Dye-Semiconductor Hybrid Materials Formed by Electrochemical Self-Assembly as Electrodes in Photoelectrochemical Cells
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SYSNO ASEP 0331633 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Nanoparticulate Dye-Semiconductor Hybrid Materials Formed by Electrochemical Self-Assembly as Electrodes in Photoelectrochemical Cells Title Nanočásticové hybridní materiály typu barvivo-polovodič vytvořené elektrochemickým samouspořádáním jako elektrody ve fotoelektrochemických článcích Author(s) Nonomura, K. (DE)
Loewenstein, T. (DE)
Michaelis, E. (DE)
Kunze, P. (DE)
Schiek, M. (DE)
Reemts, J. (DE)
Iwaya, M. Y. (JP)
Wark, M. (DE)
Rathouský, Jiří (UFCH-W) RID, ORCID
Al-Shamery, K. (DE)
Kittel, A. (DE)
Parisi, J. (DE)
Wöhrle, D. (DE)
Yoshida, T. (JP)
Schlettwein, D. (DE)Source Title Zeitschrift fuer Naturforschung. Section A: a Journal of Physical Sciences - ISSN 0932-0784
Roč. 64, 7-8 (2009), s. 518-530Number of pages 13 s. Language eng - English Country DE - Germany Keywords electrodeposition ; photosensitization ; film growth ; adsorption Subject RIV CF - Physical ; Theoretical Chemistry CEZ AV0Z40400503 - UFCH-W (2005-2011) UT WOS 000270164300016 Annotation Dye-sensitized zinc oxide thin films were prepared, characterized and optimized for applications as photoelectrochemically active electrodes. Conditions were established under which crystalline thin films of ZnO with a porous texture were formed by electrochemically induced crystallization controlled by structure-directing agents (SDA). Dye molecules were adsorbed either directly as SDA during this preparation step or, preferably, following desorption of a SDA. The external quantum efficiency (IPCE) could thereby be increased significantly. Particular emphasis was laid on dye molecules that absorb in the red part of the visible spectrum. Model experiments under ultrahigh vacuum (UHV) conditions with dye molecules adsorbed on defined crystal planes of single crystals aimed at a deeper understanding of the coupling of the chromophore electronic pi-system within molecular aggregates and to the semiconductor surface. Workplace J. Heyrovsky Institute of Physical Chemistry Contact Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Year of Publishing 2010
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