A new Li+-coordinating perylene monoimide dye has been synthesised. The dye was used as a sensitiser in dye-sensitised solar cells (DSCs), and the effect of Li+ coordination on the device performance was analyzed using various spectroscopic techniques.
![Supramolecular interactions in dye-sensitised solar cells](https://www.iciq.org/wp-content/uploads/2014/03/Supramolecular-interactions_5818.gif)