Effect of Annealing on Optical and Structural Properties of Rutile TiO₂ Nanoarrays

Abstract:

One dimensional rutile-TiO₂ nanoneedles (NNs) and nanorods (NRs) were grown directly on transparent conductive Fluorine-doped SnO₂-coated (FTO) glass substrates using Chemical Bath Deposition (CBD) method. Titanium (III) chloride was used as the precursor, followed by annealing at 200°C. The heat treatment leads to the conversion of TiO₂ nanoneedles into nanorods. Optical studies revealed that rutile-TiO₂ thin films have a high absorption coefficient and a direct bandgap which decreased slightly (3.14-3.09 eV) by applying heat treatment .The ease of deposition of rutile-TiO₂ nanocomposite with different morphologies at low temperature provides a new insight for potential applications in solar cells, sensors, catalysis and separation technology.

• Periodical: Journal of Nano Research (Volume 34)
• Pages: 23-27
• DOI: https://doi.org/10.4028/www.scientific.net/JNanoR.34.23
• Online since: July 2015
• Authors: A.H. Mayabadi, V.S. Waman, A.M. Funde, H.M. Pathan, S.R. Jadkar
• Keywords: Chemical Synthesis, Nanoarrays, TEM, X-Ray Diffraction

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