Photoelectric conversion properties of nanocrystalline TiO2 electrodes sensitized with hemicyanine derivatives

Article Abstract:

Four hemicyanine derivatives, (E)=N=(3-sulfopropyl-4-[2-(4-dimethylaminophenyl)ethyenyl]pyridinium (PS), (E)-N=(3-sulfopropyl-4-[2-(4-dimethylaminophenyl)ethenyl]quinolinium (QS), (E)=N-(3-sulfopropyl-4-[2-(4-N-methyl-N-hexadecylaminophenyl)ethenyl]pyridinium (LPS), and (E)-N-(3-sulfoproply-4 -[2-(4-N-methyl-N-hexadecylaminophenyl)ethenyl]quinolium (LQS), are synthesized and characterized with regard to their absorption and electrochemical properties. A photovoltaic liquid-junction solar cell based on nanostructured TiO2 electrode sensitized by hemicyanine dyes is described.

Thallium Compounds, Chemical synthesis, Structure

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Photocurrent enhancement of hemicyanine dyes containing RSO3(super -) group through treating TiO2 films with hydrochloric acid

Article Abstract:

The two kinds of hemicyanine dyes, 2-[4-(dimethylamino)styryl]benzothiazolium propylsulfonate (BTS) and 2-[4-(dimethylamino)styryl]-3,3-dimethylindolium propylsulfonate (IDS) are synthesized and studied. The presence of H(super +) ions on the TiO2 influences photoelectrochemical properties for hemicyanine dyes containing an RSO3(super -) group.

Hydrochloric Acid, Titanium compounds

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Novel multifunctional umbrella molecule material combining photoelectric conversion and second-order optical nonlinearities in Langmuir-Blodgett monolayers

Article Abstract:

Research is presented describing the dipolar study of umbrella materials to determined monolayer properties for both second-order and photoelectric conversion.

Observations, Monomolecular films, Dipole moments

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