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Dicationic bis-imidazolium molten salts for efficient dye sensitized solar cells: Synthesis and photovoltaic properties
- Source :
- Electrochimica Acta. 54:5709-5714
- Publication Year :
- 2009
- Publisher :
- Elsevier BV, 2009.
-
Abstract
- New dicationic bis-imidazolium salts based ionic liquids were synthesized to develop new electrolytes to improve photovoltaic properties of dye sensitized solar cells. Various properties of electrolytes such as viscosities, ion diffusion coefficients, charge transfer resistances and photovoltaic properties were studied. Electrochemical impedance spectroscopy has been performed to investigate diffusion coefficients and charge transfer resistances. Influence of polarity and chain length on the photovoltaic performance, was investigated. A DSSC employing the K34 (butyl-1,4-bis(3-methylimidazolium iodide) gives an open-circuit voltage of 0.64 V, a short-circuit current of 17.11 mA/cm(2) and conversion efficiency of 5.60% under light intensity of 100 mW/cm(2) while the DSSC based on 1-butyl-3-methylimidazolium iodide which is a reference ionic liquid exhibited 5.64% efficiency due to the lowest viscosity, highest diffusion coefficient. (C) 2009 Elsevier Ltd. All rights reserved.
- Subjects :
- chemistry.chemical_classification
Chemistry
General Chemical Engineering
Iodide
Energy conversion efficiency
Analytical chemistry
Electrolyte
Dielectric spectroscopy
chemistry.chemical_compound
Dye-sensitized solar cell
Light intensity
Chemical engineering
Ionic liquid
Electrochemistry
Molten salt
Subjects
Details
- ISSN :
- 00134686
- Volume :
- 54
- Database :
- OpenAIRE
- Journal :
- Electrochimica Acta
- Accession number :
- edsair.doi.dedup.....1cf95423d7c9ff2d542fca769d2075e9
- Full Text :
- https://doi.org/10.1016/j.electacta.2009.05.016