Promising Dye Sensitizer on Solar Cell From Complexes of Metal and Rhodamine B

Abstract

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.

Keywords

• metal; rhodamine B; complexes; dye sensitizer; solar cell; waste

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