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It presents a combined experimental and computational study of several ruthenium(II) sensitizers originated from the [Ru(dcbpyH(sub 2))(sub 2)(NCS)(sub 2)], N3, and [Ru(dcbpyH(sub 2))(tdbpy)(NCS)(sub 2)], N621, (dcbpyH(sub 2) = 4,4'-dicaboxy-2,2'-bipyridine, tdbpy = 4,4'-tridecyl-2,2'-bipyridine) complexes, an extensive Density Functional Theory (DFT)-Time Dependent DFT study of these sensitizers in solution was performed. Obtained theoretical result on the role of protnation in the interacting dye-semiconductor systems is in progress.

The selective functionalization of a ruthenium complex, resulting in red-shifted absorption spectra and enhanced molar extinction coefficient of the sensitizer is demonstrated. The finding allows creation of directionality in the excited state of sensitizer by adjusting the electron densities of the donor moieties that are not attached to the TiO(sub 2) surface.

A new range of panchromatic ruthenium(II) sensitizers have been developed, derived from carboxylated terpyridyl compounds of tris-thicyanato Ru(II).

Examines the engineering of panchromatic sensitizers for nanocrystalline TiO[sub 2]-based solar cells. Absorption and emission maxima of black dye; Presence of thiocyanates ligands.

The woven fabric containing electrochemically platinized tungsten wire is an affordable flexible cathode for liquid-junction dye-sensitized solar cells with the I3(-)/I(-) redox mediator and electrolyte solution consisting of ionic liquids and propionitrile. The fabric-based electrode outperforms the thermally platinized FTO in serial ohmic resistance and charge-transfer resistance for triiodide reduction, and it offers comparable or better optical transparency in the visible and particularly in the near-IR spectral region. The electrode exhibits good stability during electrochemical loading and storage at open circuit. The dye-sensitized solar cells with a C101-sensitized titania photoanode and either Pt-W/PEN or Pt-FTO cathodes show a comparable performance.

The Pluronic P123 templated mesoporous TiO2 film was grown via layer-by-layer deposition and characterized by a novel methodology based on the adsorption of n-pentane. Multiple-layer depositions did not perturb the mesoporous structure significantly. Our TiO2 film was sensitized by a newly developed Ru-bipyridine dye (N945) and was applied as a photoanode in dye-sensitized solar cell. The 1-microm-thick mesoporous film, made by the superposition of three layers, showed enhanced solar conversion efficiency by about 50% compared to that of traditional films of the same thickness made from randomly oriented anatase nanocrystals.