The effect of lithium iodide to the properties of carboxymethyl κ-carrageenan/carboxymethyl cellulose polymer electrolyte and dye-sensitized solar cell performance

Siti Rudhziah Che Balian, Azizan Ahmad, Nor Sabirin Mohamed

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

This study was undertaken to investigate the solid biopolymer electrolytes based on a carboxymethyl κ-carrageenan/carboxymethyl cellulose blend complexed with lithium iodide of various weight ratios. The complexation of the doping salt with the polymer blend was confirmed by Fourier transform infrared spectroscopy. Ionic conductivity of the film was determined by impedance spectroscopy in the frequency range of 10 Hz to 4 MHz and in the temperature range of 303-338 K. The ionic conductivity increased with the increase in lithium iodide concentration as well as temperature. The membrane comprising 30 wt % of lithium iodide was found to give the highest conductivity of 3.89 × 10-3 S· cm-1 at room temperature. The increase in conductivity was associated with the increase in the number as well as the mobility of the charge carries. The conductivity increase with temperature followed the Vogel-Tamman-Fulcher model. The fabricated dye-sensitive solar cell, FTO/TiO2-dye/CMKC/CMCE-LiI (30 wt %) +I2/Pt exhibited the highest conversion efficiency of 0.11% at a light intensity of 100 mW·cm-2. This indicated that the biopolymer blend electrolyte system has potential for use in dye-sensitized solar cells.

Original languageEnglish
Article number163
JournalPolymers
Volume8
Issue number5
DOIs
Publication statusPublished - 2016

Fingerprint

Carboxymethylcellulose Sodium
Carrageenan
Iodides
Lithium
Electrolytes
Cellulose
Polymers
Biopolymers
Ionic conductivity
Coloring Agents
Dyes
Temperature
Polymer blends
Complexation
Conversion efficiency
Fourier transform infrared spectroscopy
Solar cells
Salts
Doping (additives)
Spectroscopy

Keywords

  • Dye sensitized solar cell
  • Kenaf-cellulose
  • Polymer blend
  • Polymer electrolytes
  • κ-carrageenan

ASJC Scopus subject areas

  • Polymers and Plastics
  • Chemistry(all)

Cite this

The effect of lithium iodide to the properties of carboxymethyl κ-carrageenan/carboxymethyl cellulose polymer electrolyte and dye-sensitized solar cell performance. / Che Balian, Siti Rudhziah; Ahmad, Azizan; Mohamed, Nor Sabirin.

In: Polymers, Vol. 8, No. 5, 163, 2016.

Research output: Contribution to journalArticle

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