Influence of molecular weight of PEG on the property of polymer gel electrolyte and performance of quasi-solid-state dye-sensitized solar cells

Zhang Lan, Jihuai Wu, Jianming Lin, Miaoliang Huang, Shu Yin, Tsugio Sato

Research output: Contribution to journalArticlepeer-review

57 Citations (Scopus)

Abstract

A new kind of polymer gel electrolyte based on poly(acrylic acid)-poly(ethylene glycol) (PAA-PEG) hybrid was synthesized. The factor of molecular weight of PEG in the hybrid plays an important role in determining the liquid electrolyte absorbency of the hybrid and ionic conductivity of the polymer gel electrolyte, sequentially affects the photovoltaic performance of quasi-solid-state dye-sensitized solar cells. Using the hybrid with PEG molecular weight of 20,000, a polymer gel electrolyte with liquid electrolyte absorbency of 6.9 g g-1 and ionic conductivity of 5.35 mS cm-1 was obtained. Based on the polymer gel electrolyte, a quasi-solid-state dye-sensitized solar cell with conversion efficiency of 5.25% was achieved under irradiation of AM 1.5, 100 mW cm-2.

Original languageEnglish
Pages (from-to)6673-6678
Number of pages6
JournalElectrochimica Acta
Volume52
Issue number24
DOIs
Publication statusPublished - 2007 Aug 1

Keywords

  • Dye-sensitized solar cell
  • Molecular weight
  • Poly(acrylic acid)-poly(ethylene glycol) hybrid
  • Polymer gel electrolyte

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Electrochemistry

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