Journal
ELECTROCHIMICA ACTA
Volume 55, Issue 20, Pages 5652-5658Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2010.04.103
Keywords
Amide-containing imidazolium iodide; Dye-sensitized solar cell; Short-circuit photocurrent; Overall energy conversion efficiency; Long-term stability
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Funding
- KOSEF-JSPS
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A novel alkylimidazolium iodide containing an amide group, 1-(2-hexanamidoethyl)-3-methylimidazol-3-ium iodide (amido-ImI), was synthesized to act as the quasi-solid-state electrolyte of dye-sensitized solar cells (DSSCs). The DSSC with the amido-ImI electrolyte exhibited short-circuit photocurrent density (J(sc)) and overall energy conversion efficiency (eta) that were improved by 7.2% and 10.2%, respectively, compared to those obtained with the cell containing 1-hexyl-2,3-dimethylimidazolium iodide, a commonly used liquid electrolyte, at 100 mW cm(-2). Furthermore, the stability of the DSSC was enhanced by the presence of amido-ImI. (C) 2010 Elsevier Ltd. All rights reserved.
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