Electrical Behaviour and Photovoltaic Performance of Poly (ε-caprolactone)-Based Quasi-Solid-State Polymer Electrolyte

  • Authors

    • N. A. Y. Razamin
    • R. H. Y. Subban
    • Tan Winie
    2018-11-27
    https://doi.org/10.14419/ijet.v7i4.18.21978
  • DMF, DSSC, KI, PCL, Polymer Electrolyte.

  • Abstract

    Quasi-solid-state polymer electrolytes based on poly(ε-caprolactone) (PCL) and dimethylformamide (DMF) with various concentrations of potassium iodide (KI) were prepared and characterized for their electrical properties and the performance in dye-sensitized solar cells (DSSCs). Incorporation of KI increased the conductivity by 3 order of magnitude from 10-6 to 10-3 Scm-1. The highest conductivity was achieved at 0.2 M of KI. The number, n and mobility, µ of ions were calculated by impedance spectroscopy to evaluate the conductivity variation quantitatively. Conduction mechanism of the electrolyte was determined using Jonscher’s universal power law. The conduction mechanism was discussed by comparing the behaviour of temperature dependence of exponent s with existing theoretical models. The small polaron hopping (SPH) model was found to be the model for conduction mechanism of PCL-DMF-KI electrolyte. DSSC with 0.2 M of KI shows the highest photovoltaic performance, η of 2.72% with short-circuit current density, Jsc of 5.56 mA cm-2, open circuit voltage, Voc of 0.72 V and fill factor, ff of 69%.

     

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  • How to Cite

    A. Y. Razamin, N., H. Y. Subban, R., & Winie, T. (2018). Electrical Behaviour and Photovoltaic Performance of Poly (ε-caprolactone)-Based Quasi-Solid-State Polymer Electrolyte. International Journal of Engineering & Technology, 7(4.18), 404-408. https://doi.org/10.14419/ijet.v7i4.18.21978

    Received date: 2018-11-28

    Accepted date: 2018-11-28

    Published date: 2018-11-27