Ordered titania nanotubes layer selectively annealed by laser beam for high contrast electrochromic switching
The phase conversion from amorphous into crystalline one in the selected area of as-anodized titania nanotubes was achieved via laser treatment. The optimized processing parameters enable fast, one-minute crystallization of titania within an area limited by a shadow mask and without any morphology damage of ordered TiO2 tubular film. The laser annealed titania nanotubes could be easily overgrown by a conducting polymer without any additional activation procedure. The organic matrix infiltrated down to the titanium substrates as was revealed on the basis of depth profile of elemental composition recorded using X-ray photoelectron spectroscopy technique performed under the etching mode. Obtained inorganic-organic composite exhibits a doubling of its colour depending on the applied potential and high contrast electrochromic properties were verified.
Katarzyna Siuzdak, Mariusz Szkoda, Mirosław Sawczak, Jakub Karczewski, Jacek Ryl, Adam Cenian. (2018). Ordered titania nanotubes layer selectively annealed by laser beam for high contrast electrochromic switching, 659, 48-56. https://doi.org/10.1016/j.tsf.2018.05.045
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