Effect of O2 flow rate on the thermochromic performance of VO2 coatings grown by atmospheric pressure CVD.

Autor: Louloudakis, Dimitris, Vernardou, Dimitra, Spanakis, Emmanouel, Dokianakis, Spyros, Panagopoulou, Marianthi, Raptis, Giannis, Aperathitis, Elias, Kiriakidis, George, Katsarakis, Nikolaos, Koudoumas, Emmanouel
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Zdroj: Physica Status Solidi (C); Jul2015, Vol. 12 Issue 7, p856-860, 5p
Abstrakt: This paper reports the atmospheric pressure chemical vapor deposition of vanadium oxide coatings using vanadyl (IV) acetylacetonate at 500 oC. The as-grown samples for 0.8 L min-1 O2 flow rate showed an (022)-oriented single vanadium dioxide monoclinic phase of low crystallinity. The narrowest hysteresis width is observed for the particular flow rate indicating a dependency on the shape of the grown crystallites. Regarding the difference in transmittance is determined by the enhanced presence of short- and long-range bond ordering of the samples. (© 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim) [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index