Vol. 24 No. 3S1 (2014)
Papers

Characterization of Structural and Electrochromic Properties of Nanocomposite \(\text{TiO}_{2}-\text{WO}_{3} \) Films

Dang Hai Ninh
University of Engineering and Technology, Vietnam National University, Hanoi
Tran Thi Thao
University of Engineering and Technology, Vietnam National University, Hanoi
Nguyen Nang Dinh
University of Engineering and Technology, Vietnam National University, Hanoi
Pham Duy Long
Institute of Materials Science, Vietnam Academy of Science and Technology

Published 07-11-2014

Keywords

  • electrochromic display (ECD),
  • electrochemical deposition,
  • SEM and EDX,
  • XRD and Raman scattering,
  • coloration efficiency

How to Cite

Ninh, D. H., Thao, T. T., Dinh, N. N., & Long, P. D. (2014). Characterization of Structural and Electrochromic Properties of Nanocomposite \(\text{TiO}_{2}-\text{WO}_{3} \) Films. Communications in Physics, 24(3S1), 57–63. https://doi.org/10.15625/0868-3166/24/3S1/5146

Abstract

Using doctor-blade technique, followed by electrochemical deposition, nanocomposite WO\(_{3}\)-TiO\(_{2}\) films were prepared. Structure, morphology and composition ratio of the nanocomposite films were characterized by a comprehensive analyzing the SEM, EDX, XRD and Raman scattering results. The reversible coloration and bleaching of TiO\(_{2}\)/ITO and WO\(_{3}\)-TiO\(_{2}\)/ITO electrodes were demonstrated. The ECD coloration efficiency of WO\(_{3}\)-TiO\(_{2}\)/ITO was found to be much larger (55.1 cm\(^{2}\times \text{C}^{ - 1})\) than that of TiO\(_{2}\)/ITO (34.3 cm\(^{2}\times \text{C}^{ - 1})\). The resulting nanostructured composites enables the coloration efficiency of the WO\(_{3}\)-TiO\(_{2}\) film to be considerably improved. The results suggest a potential application of the nanocomposites of two electrochromic oxides in large-area energy-efficiency (or smart) windows.

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