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Nature Chemistry (11 July 2008) | doi:10.1038/nchem.34

Solar cell electrolytes: Into the mix

Gavin Armstrong

The electrolytes of high-performance dye-sensitized solar cells (DSCs) have previously contained volatile solvents, which need robust encapsulation if they are to be used outdoors. Now, Michael Gr|[auml]|tzel and co-workers from the Swiss Federal Institute of Technology and the Chinese Academy of Sciences in Changchun have developed stable and solvent-free ionic liquid electrolytes through the rational mixing of three solid imidazolium salts.