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Iron Oxide Decorated Titania Nanotubes for Solar Energy Harvesting Applications

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A hybrid structure consisting of iron oxide nanoparticles decorated on titania (TiO2) nanotube arrays has been synthesized by a very rapid forced hydrolysis method, followed by post annealing treatment. The morphology and structure analysis of the hybrid TiO2/Fe2O3 composites indicated uniform, conformal coating of the hematite nanoparticles on the anatase titania nanotubes. Diffuse reflectance spectroscopy was used to investigate the absorption properties of the TiO2/Fe2O3 structures. An increase in the absorbance of visible light in the range 380 nm to 600 nm has been observed when compared with pristine nanotubes. This is similar to the visible light absorbance enhancement observed in Ru-dye sensitized titania nanotubes. Thus iron oxide decorated titania nanotube demonstrate immense potential for use as inexpensive and robust materials for improved solar energy harvesting for photovoltaic applications.
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Keywords: Forced Hydrolysis; TiO2 Nanotubes; Visible Light Absorption; α-Fe2O3

Document Type: Research Article

Affiliations: Physics Department, Northeastern University, Boston, MA, 02115, USA

Publication date: March 1, 2017

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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