Kuang, D., Klein, C., Snaith, H. J., Moser, J.-E., Humphry-Baker, R., Comte, P., Zakeeruddin, S. M., & Graetzel, M. (2006). Ion Coordinating Sensitizer for High Efficiency Mesoscopic Dye-Sensitized Solar Cells: Influence of Lithium Ions on the Photovoltaic Performance of Liquid and Solid-State Cells. Nano Letters, 6(4), 769–773. https://doi.org/10.1021/nl060075m