Succinonitrile-based solid-state electrolytes for dye-sensitised solar cells

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Title: Succinonitrile-based solid-state electrolytes for dye-sensitised solar cells
Authors: Byrne, Owen
Coughlan, Aoife
Surolia, Praveen K.
Thampi, Ravindranathan
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Date: 12-Dec-2013
Abstract: 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 (200 lx) to investigate their suitability for indoor DSSC applications
Funding Details: European Commission - Seventh Framework Programme (FP7)
Irish Research Council for Science, Engineering and Technology
Science Foundation Ireland
Type of material: Journal Article
Publisher: Wiley
Copyright (published version): 2013 John Wiley and Sons, Ltd
Keywords: DSSCDSCDye-sensitised solar cellSolid electrolyteSuccinonitrile
DOI: 10.1002/pip.2441
Language: en
Status of Item: Peer reviewed
Appears in Collections:Chemical and Bioprocess Engineering Research Collection

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