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"Brick and Mortar" Strategy for the Formation of Highly Crystalline Mesoporous Titania Films from Nanocrystalline Building Blocks
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SYSNO ASEP 0331623 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title "Brick and Mortar" Strategy for the Formation of Highly Crystalline Mesoporous Titania Films from Nanocrystalline Building Blocks Title Strategie "brick and mortar” pro přípravu vysoce krystalických mesoporézních filmů oxidu titaničitého z nanokrystalických stavebních bloků Author(s) Szeifert, J. M. (DE)
Fattakhova Rohlfing, D. (DE)
Georgiadou, D. (DE)
Kalousek, Vít (UFCH-W)
Rathouský, Jiří (UFCH-W) RID, ORCID
Kuang, D. (CH)
Wenger, S. (CH)
Zakeeruddin, S. M. (CH)
Grätzel, M. (CH)
Bein, T. (DE)Source Title Chemistry of Materials. - : American Chemical Society - ISSN 0897-4756
Roč. 21, č. 7 (2009), s. 1260-1265Number of pages 6 s. Language eng - English Country US - United States Keywords sensitized solar-cells ; anatase thin-films ; TiO2 films Subject RIV CF - Physical ; Theoretical Chemistry R&D Projects GA104/08/0435 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z40400503 - UFCH-W (2005-2011) UT WOS 000265029100016 DOI 10.1021/cm8029246 Annotation We present a novel "brick and mortar" strategy for creating highly efficient transparent TiO2 coatings for photocatalytic and photovoltaic applications. Our approach is based on the fusion of preformed titania nanocrystalline "bricks" through surfactant-templated sol-gel titania "mortar", which acts as a structure-directing matrix and as a chemical glue. The similar chemical composition of both bricks and mortar leads to a striking synergy in the interaction of crystalline and amorphous components, such that crystallization is enhanced upon thermal treatment and highly porous and highly crystalline structures are formed at very mild conditions. Coatings with a broad variety of periodic mesostructures and thicknesses ranging from few nanometers to several micrometers are accessible using the same organic template, and the final structures are tunable by varying the fraction of the "bricks". 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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