CID 138114844

• CAT Number: L005893
• Molecular Formula: C42H52N6O4RuS2
• Molecular Weight: 870.1
• Purity: 95%
• Synonyms: Ruthenium Dye Z907
• Solubility: Acetonitrile/tert-butanol (v/v = 1:1); DMSO
• Appearance: Black crystalline powder
• Storage: Room Temperature (Recommended in a cool and dark place)
• IUPAC Name: 2-(4-carboxypyridin-2-yl)pyridine-4-carboxylate;4-nonyl-2-(4-nonylpyridin-2-yl)pyridine;ruthenium(2+);diisothiocyanate
• SMILES: CCCCCCCCCC1=CC(=NC=C1)C2=NC=CC(=C2)CCCCCCCCC.C1=CN=C(C=C1C(=O)O)C2=NC=CC(=C2)C(=O)[O-].C(=[N-])=S.C(=[N-])=S.[Ru+2]

Z-907 dye (cis-Ru(H₂dcbpy)(dnbpy)(NCS)₂) is a ruthenium-based amphiphilic sensitizer widely applied in dye-sensitized solar cells (DSSCs). It features 4,4′-dicarboxylic acid-2,2′-bipyridine (H₂dcbpy) and 4,4′-dinonyl-2,2′-bipyridine (dnbpy) ligands, with two long hydrophobic alkyl chains that provide an insulating barrier to suppress charge recombination while enhancing interfacial stability. This structural design improves thermal durability and long-term device performance. DSSCs employing Z-907 dye with co-adsorbents such as hexadecyl phosphonic acid have demonstrated excellent stability, maintaining ~7% efficiency after 1,000 hours of continuous ageing at 80 °C. Owing to these properties, Z-907 dye is regarded as a benchmark material for durable, high-efficiency DSSCs.