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Di(isothiocyanato)bis(4-methyl-4’-vinyl-2,2’-bipyridine) Ruthenium(II) Films Deposited on Titanium Oxide-Coated, Fluorine-Doped Tin Oxide for an Efficient Solar Cell
School of Environmental Science and Engineering, Kochi University of Technology, Kami, Japan
School of Environmental Science and Engineering, Kochi University of Technology, Kami, Japan
School of Environmental Science and Engineering, Kochi University of Technology, Kami, Japan
- 1 School of Environmental Science and Engineering, Kochi University of Technology, Kami, Japan
- 2 School of Environmental Science and Engineering, Kochi University of Technology, Kami, Japan
- 3 School of Environmental Science and Engineering, Kochi University of Technology, Kami, Japan
Green and Sustainable Chemistry·Volume 03 (2013)·Pages 61–67·Published 14 May 2013·DOI10.4236/gsc.2013.32011
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Abstract
Dye-sensitized titanium oxide electrodes were prepared by immobilizing a novel ruthenium complex, di(isothiocy - anato)bis(4-methyl-4 ’ -vinyl-2,2 ’ -bipyridine)ruthenium(II) [(NCS) 2 (mvbpy) 2 Ru(II)] or the ruthenium complex/sodium 4-vinylbenzenesulfonate onto the surface of a titanium oxide-coated, fluorine-doped tin oxide (TiO 2 /FTO) electrode through a new electrochemically initiated film formation method, in which the electrolysis step and the film deposition step were individually performed. The incident photon-to-current conversion efficiency (IPCE) of the Ru complex film on a TiO 2 /FTO electrode was disappointedly insufficient (1.2% at 440 nm). In sharp contrast, the Ru(II) complex/so - dium 4-vinylbenzenesulfonate composite film deposited on the surface of a TiO 2 /FTO electrode showed maximum IPCE of 31.7% at 438 nm.
KeywordsMethylvinylbipyridineRuthenium ComplexDye-Sensitized Solar CellPhoton-to-Current Conversion Efficiency
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