| 1. |
- Galstyan, V., et al.
(författare)
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Fabrication of pure and Nb-TiO 2 nanotubes and their functional properties
- 2012
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Ingår i: Journal of Alloys and Compounds. - : Elsevier BV. - 0925-8388 .- 1873-4669. ; 536:SUPPL.1, s. S488-S490
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Tidskriftsartikel (refereegranskat)abstract
- TiO 2 and Nb-doped TiO 2 nanotubes were obtained on flexible polymeric substrates (Kapton HN) and alumina with high roughness (alumina substrate with granular surface). Nanotubes were prepared by electrochemical anodization of a Ti thick film. Scanning electron microscopy (SEM) and atomic force microscopy (AFM) were used to investigate the morphology of the structures and the roughness of the substrates. The functional properties of tubular arrays obtained on flexible and rough substrates were investigated towards two applications, namely, chemoresistive gas sensors and flexible dye sensitized solar cells. © 2011 Elsevier B.V. All rights reserved.
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| 2. |
- Galstyan, V., et al.
(författare)
-
Fabrication of TiO 2 and TiO 2 nanotubular arrays and their gas sensing properties
- 2011
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Ingår i: Procedia Engineering. - : Elsevier BV. - 1877-7058. ; 25, s. 757-760
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Tidskriftsartikel (refereegranskat)abstract
- Pure TiO 2 and TiO 2 nanotubular arrays were successfully sensitized. Nanotubular arrays were prepared by electrochemical anodization of thin films of Ti and of Ti-Nb deposited on alumina substrates with two different roughness. Morphological characterization and functional properties are presented. The gas sensing properties of TiO 2 and TiO 2 nanotubes with different gases have been tested in a wide range of operating temperatures. © 2011 Published by Elsevier Ltd.
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| 3. |
- Vomiero, Alberto, et al.
(författare)
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Flexible dye sensitized solar cells using TiO 2 nanotubes
- 2011
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Ingår i: Energy & Environmental Science. - : Royal Society of Chemistry (RSC). - 1754-5692 .- 1754-5706. ; 4:9, s. 3408-3413
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Tidskriftsartikel (refereegranskat)abstract
- The growth of TiO 2 nanotube arrays on plastic flexible substrates is researched. The approach uses anodization of a titanium thick film for obtaining nanotubes directly on poly(ethylene terephthalate) (PET) and Kapton HN substrate. The morphological features of the tubes can be finely tuned by varying the preparation conditions, and tube morphology affects the functional properties of the nanotube array. Crystallization of the anatase phase in nanotubes on Kapton HN substrate is obtained via post growth annealing. The nanotube arrays have been dye-sensitized using the commercial Ru-based N719 dye. The system was tested as photoanode in a flexible dye sensitized solar cell. Photoconversion efficiency of 3.5% was obtained. © 2011 The Royal Society of Chemistry.
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