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    • Study on structural and optical properties of thermally evaporated MoO$_3$ thin films

      K V MADHURI DIVYA DIXIT

      Volume 45 Published: 13 May 2022 Article ID 0083

    • Fulltext

       

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      Permanent link:
      https://www.ias.ac.in/article/fulltext/boms/045/0083

    • Keywords

       

      Molybdenum trioxide thin films; substrate temperature; structure and morphology; optical properties; electrochromic properties.

    • Abstract

       

      Molybdenum trioxide (MoO$_3$) thin films are grown on ITO-coated glass substrates by thermal deposition technique under the presence of oxygen partial pressure (PO$_2$) about 2 ${\times}$ 10$^{–3}$ mbar at various substrate temperatures to enhance electrochromic efficiency. Even at room temperature, the experimental films were crystalline, and crystallinity increased as the substrate temperature ($T_s$) was raised to 150°C. It is noted that the uniform spherical structure was transformed to a needle-like structure at $T_s$ = 150°C. The transmittance of the films improved with substrate temperature, and corresponding bandgap values were measured. The films grown at $T_s$ = 150°C reported the highest colouration efficiency.

    • Author Affiliations

       

      K V MADHURI1 DIVYA DIXIT

      1. Thin Film Research Laboratory, Division of Physics, Department of Sciences and Humanities, Vignan’s Foundation for Science, Technology and Research (Deemed to be University), Vadlamudi 522213, India

    • Dates

       
      Published
      13 May 2022
      Manuscript received
      3 September 2021
      Accepted
      28 December 2021
      Final version published online
      13 May 2022

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