Effect of ionic liquid concentration on the photovoltaic performance of dye-sensitized solar cell

F. I. Saaid, Tseung-Yuen Tseng, Tan Winie*

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

3 Scopus citations

Abstract

Quasi-solid-state electrolytes based on poly(vinylidene fluoride-co-hexafluoropropylene) (PVdf-HFP), propylene carbonate (PC), 1,2-dimethoxyethane (DME) and different concentrations of 1-methyl-3-propylimidazolium iodide (MPII) salt were prepared. The highest room temperature conductivity of 4.6 x 10-3 S cm-1 was achieved with 1.0M MPII. The effect of MPII on the conductivity was discussed on the basis of number free ions. The number of free ions were estimated by impedance spectroscopy method. DSSC at 1.0M MPII shows the conversion efficiency, η of 3.70% with short-circuit current density, Jsc of 8.65 mA cm-2, open circuit voltage, Voc of 641 mV and a fill factor, FF of 66%.

Original languageEnglish
Pages (from-to)401-407
Number of pages7
JournalMaterials Today: Proceedings
Volume17
DOIs
StatePublished - 1 Jan 2019
Event6th International Conference on Functional Materials and Devices, ICFMD 2017 - Melaka, Malaysia
Duration: 15 Aug 201718 Aug 2017

Keywords

  • Dye-sensitized solar cells
  • Electrolyte
  • MPII
  • PVdF-HFP
  • Quasi-solid state

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