• Comparison of performance parameters of poly(3,4 ethylenedioxythiophene) (PEDOT) based electrochromic device on glass with and without counter electrode

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    • Keywords


      Electrochromic devices; conducting polymers; PEDOT; indium tin oxide.

    • Abstract


      Conjugated polymers are promising materials for electrochromic device technology. Aqueous dispersions of poly(3,4-ethylenedioxythiophene)-(PEDOT) were spin coated onto transparent conducting oxide (TCO) coated glass substrates. A seven-layer electrochromic device was fabricated with the following configuration: glass/transparent conducting oxide (TCO)/PEDOT (main electrochromic layer)/gel electrolyte/prussian blue (counter electrode)/TCO/glass. The device fabricated with counter electrode (Prussian blue) showed a contrast of 18% and without counter electrode showed visible contrast of 5% at 632 nm at a voltage of 1.9 V. The comparison of the device is done in terms of the colouration efficiency of the devices with and without counter electrode.

    • Author Affiliations


      S Sindhu1 K Narasimha Rao2 E S R Gopal3

      1. Practice School Division, BITS Pilani; Professional Development Centre, Bangalore 560 008, India
      2. Department of Instrumentation, Indian Institute of Science, Bangalore 560 012, India
      3. Department of Physics, Indian Institute of Science, Bangalore 560 012, India
    • Dates

  • Bulletin of Materials Science | News

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