Promising dye sensitizer on solar cell from complexes of metal and rhodamine B

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Herein a series of complexes from metals (Fe, Co, Ni) and rhodamine B as ligand were synthesized, characterized and applied as promising dye sensitizer on solar cell. Complexes were obtained from the reaction of Fe(II), Co(II), Ni(II) salts and rhodamine B with mole ratio 1:3. UV-Visible spectroscopy confirms all of complexes showing Metal Ligand Charge Transfer (MLCT) absorption band at 258 nm and stability constant (log K) of complexes were 23.47 for Fe-Rb and Ni-Rb and 23.76 for Co-Rb. Infrared spectroscopy confirms metal-ligand coordination through carbonyl (CO) and methoxy (CH3O) groups. Electrical conductivity analysis indicates that all of complexes are ionic complexes. All of complexes can be utilized as promising dye sensitizer with efficiency 2.03% (Fe), 0.59% (Co), and 0.12% (Ni). Goal of this research is to help solve dye waste problem and energy crisis.

Original languageEnglish
Pages (from-to)694-698
Number of pages5
JournalInternational Journal of Renewable Energy Research
Issue number3
Publication statusPublished - 2015


  • Complexes
  • Dye sensitizer
  • Metal
  • Rhodamine B
  • Solar cell
  • Waste


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