Preparation and Characterization of Titania Porous-Nanotube Arrays with a High Growth Rate on Flexible Stainless Steel Substrate

Abstract:

Ti film sputtered on flexible stainless steel substrate that rolled by 20-high Sendzimir Mill, was anodized in ethylene glycol bath in the presence of 0.5 wt.% NH4F and 3 vol.% H₂O at a high voltage of 60 V. High-aspect-ratio porous-nanotube arrays (PNTAs) of TiO2 with the tubes length of 6.2 µm were quickly prepared from Ti film, at the high growth rate of 20.7 nm·s^-1. Then the morphology and structure of PNTAs were characterized by field emission scanning electron microscope (FESEM) and X-ray diffraction (XRD), respectively. Finally, a DSSC with the photoanode of PNTAs exhibited a performance of J_sc = 2.40 mA·cm^-2, V_oc = 0.79V, FF = 0.57 and η = 1.08%.

• Periodical: Advanced Materials Research (Volumes 399-401)
• Pages: 760-765
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.399-401.760
• Online since: November 2011
• Authors: Xue Ting He, Jie Tao, Hai Jun Tao, Zuo Guo Bao
• Keywords: Electrochemical Anodization, Flexible Stainless Steel Substrate, High Growth Rate, Sputtered Ti, TiO₂ Nanotube

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