Anionic 1,2,3-Triazole Tridentate Ligand for Dye-Sensitized Solar Cells

2,6-Di(2H-1,2,3-triazol-4-yl)pyridine (1), developed by Schubert group, can be utilized as a ligand for dye-synthesized solar cells (DSSCs). The anionic 1,2,3-triazole tridentate ligand exhibits strong electron donation and hence can be used to synthesize bis(tridentate) ruthenium (II) metal complexes for application in the DSSCs. Additionally, 1 can be functionalized with chromophores at the central pyridine ring for optimizing the light-harvesting properties of its Ru(II) complexes.