Well-ordered TiO2 nanostructures such as 1-dimensional nanowire arrays, 2-dimensional square and hexagonal hole arrays, and 3-dimensional wire junction arrays were fabricated by a simple, controllable, economical, and reproducible method using surface relief gratings on azobenzene-functionalized polymer films as a template in the sol–gel reaction of a Ti precusor. In addition, as an application of TiO2 nanostructure, transparent electrodes were patterned by selective dry etching with the TiO2 nanowire array etch mask. Scanning electron microscope and atomic force microscope images confirmed the successful formation of a variety of well-ordered TiO2 nanostructures and nanopatterning of transparent electrodes.
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Journal of Materials Chemistry
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