Cyclic ammonium-based ionic liquids as potential electrolytes for dye-sensitized solar cells

I. Wen Sun, H. Paul Wang, Hsisheng Teng, Shyh Gang Su, Yuan Chung Lin, Chung Wen Kuo, Pin Rong Chen, Tzi Yi Wu

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)

Abstract

Cyclic ammonium-based ionic liquids containing pyrrolidinium, piperidinium, morpholinium-based cations are synthesized, and their thermal properties, viscosities, ion diffusion coefficients, charge transfer resistances, and photovoltaic properties are characterized. A DSSC electrolyte employing Pyr14 (1-butyl-1-methylpyrrolidinium iodide) gives an open circuit voltage of 0.685 V, a short-circuit current of 14.53 mA/cm2, and conversion efficiency of 6.52 % under light intensity of 100 mW/cm2 due to Pyr14 possesses the lowest viscosity and highest diffusion coefficient. The DSSC based on Pip14 exhibited 5.55 % conversion efficiency, which is smaller than that of Mor14 (η = 6.19 %) due to an oxygen atom substitutes for a carbon atom.

Original languageEnglish
Pages (from-to)9765-9780
Number of pages16
JournalInternational Journal of Electrochemical Science
Volume7
Issue number10
Publication statusPublished - 2012 Dec 1

All Science Journal Classification (ASJC) codes

  • Electrochemistry

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