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Solid gellan gum polymer electrolyte for energy application

International Journal of Hydrogen Energy, ISSN: 0360-3199, Vol: 40, Issue: 30, Page: 9365-9372
2015
  • 54
    Citations
  • 0
    Usage
  • 61
    Captures
  • 0
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    54
    • Citation Indexes
      54
  • Captures
    61

Article Description

In this paper a carbohydrate polymer (Phytagel/gellan gum) based solid gel electrolyte synthesis and its application in dye sensitized solar cell is reported. Potassium iodide has been added in Gelrite/Phytagel biopolymer matrix to develop solid gel electrolyte. Complex impedance spectroscopy shows liquid like ionic conductivity, with maximum conductivity 2.5 × 10 −2  S cm −1 at 60:40 composition. Infrared spectroscopy (IR) confirms the formation of complex nature while x-ray diffraction (XRD) affirms the composite nature and suppression in crystallinity by salt doping. Polarized microscopy (POM) shows enhancement in amorphousity of gel matrix by salt doping which is a known favourable condition for ionic conductivity enhancement in gel electrolyte system and supported by our XRD data. A dye sensitized solar cell (DSSC) has been fabricated using maximum conductivity which shows with J sc  = 3.2 × 10 −3  mA/cm 2, V oc  = 0.57, FF = 0.90, ɳ = 1.47 at 1 sun condition.

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