• TiO$_2$ aerogel–metal organic framework nanocomposite: a new class of photoanode material for dye-sensitized solar cell applications

    • Fulltext

       

        Click here to view fulltext PDF


      Permanent link:
      https://www.ias.ac.in/article/fulltext/boms/041/01/0027

    • Keywords

       

      Mesoporous materials; electron lifetime; band gap; network structure; oxygen vacancies; XPS.

    • Abstract

       

      TiO$_2$ aerogel–metal organic framework (MOF) nanocomposite was synthesized using sol–gel method followedby subcritical drying technique and employed as a photoanode material in quasi-solid dye-sensitized solar cells (DSSCs). Thenanocomposite material showed aBET surface area of 250 m$^2$ g$^{−1}$ with an average pore size of 5 nm. Field emission scanning electron microscopic images revealed the continuous arrangement of pore-solid network structure. Energy-dispersive X-ray analysis shows the presence of MOF clusters on TiO$_2$ aerogel network. X-ray photoelectron spectroscopic analysis alsosupports the presence of MOF clusters in the aerogel network and indicates the presence of some oxygen vacancies in thenanocomposite material. The TiO$_2$ aerogel–MOF nanocomposite was used as photoanode in DSSC and an overall power conversion efficiency 2.34% along with a short circuit current density 6.22 mA cm$^ {−2}$ was achieved.

    • Author Affiliations

       

      S ALWIN1 2 V RAMASUBBU1 X SAHAYA SHAJAN1

      1. Center for Scientific and Applied Research, PSN College of Engineering and Technology, Melathediyoor, Tirunelveli 627152, India
      2. Department of Chemistry, Sri Shakthi Institute of Engineering and Technology, Coimbatore 641062, India
    • Dates

       
  • Bulletin of Materials Science | News

    • Editorial Note on Continuous Article Publication

      Posted on July 25, 2019

      Click here for Editorial Note on CAP Mode

© 2017-2019 Indian Academy of Sciences, Bengaluru.