A novel route to 4,4'-disubstituted bipyridyl ligands in ruthenium complexes for dye-sensitized solar cells

Gylen Odling, Nina Chadwick, Ewan Frost-Pennington, D. Kishore Kumar, Aruna Ivaturi, Hari M. Upadhyaya, Neil Robertson

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Abstract

An in situ nucleophilic aromatic substitution reaction has been observed and applied as a simple route to introduce functionality to the 4,4' positions of bipyridyl units coordinated to a Ru(II) centre. This has been used in the synthesis of a new Ru(II) sensitiser complex [RuII(4,4'-dicarboxy-2,2'-bipyridyl)(4,4'-dithiocyanate-2,2'-bipyridyl)dithiocyanate] 1 for use in dye-sensitised solar cells. 1 exhibits improved light harvesting in the 350-450 nm region in comparison with N719 and produced cells with power conversion efficiencies of 3.18%.

Original languageEnglish
Pages (from-to)45-48
Number of pages4
JournalPolyhedron
Volume89
DOIs
Publication statusPublished - 29 Mar 2015

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Keywords

  • bipyridyl
  • dye-sensitized solar cells
  • impedance
  • nucleophilic aromatic substitution
  • ruthenium(II) complex

Cite this

Odling, G., Chadwick, N., Frost-Pennington, E., Kumar, D. K., Ivaturi, A., Upadhyaya, H. M., & Robertson, N. (2015). A novel route to 4,4'-disubstituted bipyridyl ligands in ruthenium complexes for dye-sensitized solar cells. Polyhedron, 89, 45-48. https://doi.org/10.1016/j.poly.2014.12.021