Determination of the light-induced degradation rate of the solar cell sensitizer N719 on TiO(sub 2) nanocrystalline particles

Article Abstract:

The oxidative degradation rate, k(sub deg) of solar dye (Bu(sub 4)N(super +))(sub 2)[Ru(dcbpyH)(sub 2)(NCS)(sub 2)](sub 2-) referred as N719 or [RuL(sub 2)(NCS)(sub 2)] was obtained by applying a simple model system. The study revealed that the stability of N719 dye during the solar cell operation were found and the first three regeneration rate constants were same but the first and the last differed by a factor more than 100 with highest value at N=5.3 * 10(super8).

Science & research, Cyclic crudes and intermediates, Synthetic Organic Dye and Pigment Manufacturing, Organic Colorants, Organic Dyes & Pigments, Organic Dyes, Research, Oxidation-reduction reaction, Oxidation-reduction reactions, Titanium dioxide, Chemical properties

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Recombination and transport processes in dye-sensitized solar cells investigated under working conditions

Article Abstract:

The transport and recombination of electrons in dye-sensitized Ti[O.sub.2] solar cells were studied by analysis of the current and voltage response to a small square-wave light intensity modulation. It was found that an increase in applied voltage, from 0 V toward open-circuit voltage lead to faster electron transport at low light intensities while it slowed transport at higher light intensities.

Solar cells, Titanium, Solar batteries

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Fast electron transport in metal organic vapor deposition grown dye-sensitized ZnO nanorod solar cells

Article Abstract:

The electron transport in dye-sensitized solar cells with a metal organic vapor deposition (MOCVD)-grown ZnO nanorod array (ZnO-N) was compared to a mesoporous film prepared from ZnO colloids (ZnO-C) as the working electrode. The findings concluded that morphology of the working ZnO electrode plays a vital role for the electron transport properties.

Zinc oxide

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