Journal
PROGRESS IN PHOTOVOLTAICS
Volume 23, Issue 4, Pages 417-427Publisher
WILEY
DOI: 10.1002/pip.2441
Keywords
DSSC; DSC; dye-sensitised solar cell; solid electrolyte; succinonitrile
Funding
- European Commission [265769]
- IRCSET
- SolarPrint under the EMPOWER Industry
- [S07/EN/E013]
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Succinonitrile (SCN), a solid ion conductor (10(-4) to 10(-3) S/cm) in solid form at room temperature, is mixed with either 1,2-dimethyl-3-propylimidazoliuum iodide or 1-butyl-3-methyl imidazolium iodide ionic liquids for forming a solid plastic phase electrolyte for use in dye-sensitised solar cell (DSSC). Cells containing these two electrolytes showed best energy conversion efficiencies of 6.3% and 5.6%, respectively. The commonly used DSSC electrolyte additives inhibit the formation of the SCN plastic phase. However, for the first time, an SCN-additive (additive=guanidinium thiocyanate) electrolyte composition is reported here, which remains as a solid at room temperatures. By using these new solid electrolytes, a simple and rapid single-step filling procedure for making solid-state DSSC is outlined. This process, which reduces the required manufacturing steps from four to one, is most suitable for continuous, high-throughput, commercial DSSC manufacturing lines. These new electrolytes have been tested under low incident light levels (200lx) to investigate their suitability for indoor DSSC applications. Copyright (c) 2013 John Wiley & Sons, Ltd.
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