Influence of the percolation network geometry on electron transport in dye-sensitized titanium dioxide solar cells
Article Abstract:
The first clear evidence that the network geometry strongly influences the electron transport dynamics in mesoporous nanoparticle TiO2 films is described, and it is shown that percolation theory accounts very well for the results. The electron diffusion pathway through the network distribution was correlated with the film porosity and the interparticle coordination numbers.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2003
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Nanocrystalline TiO(sub 2)/ZnO thin films: Fabrication and application to dye-sensitized solar cells
Article Abstract:
Nanocrystalline TiO(sub 2)/ZnO thin film electrodes for dye-sensitized solar cells were fabricated using chemical bath deposition technique and the layer-by-layer (LbL) method onto an indium-doped tin oxide (ITO) substrate. The as-deposited TiO(sub 2)/ZnO electrode was found to be stable for a period of 25 min and had a device power conversion effciency of 0.67%.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2005
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Explaining the enhanced photocatalytic activity of degussa P25 mixed-phase TiO2 using EPR
Article Abstract:
The charge separation characteristics of a high-activity, mixed-phase titania photocatalyst (Degussa P25) are probed by Electron Paramagnetic Spectroscopy (EPR). The results suggest that within mixed-phase titania (P25) there is a morphology of nanoclusters containing atypically small rutile crystallites interwoven with antase crystallites.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2003
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- Abstracts: Illumination intensity dependence of the photovoltage in nanostructured TiO2 dye-sensitized solar cells. Origin of light-harvesting enhancement in colloidal-photonic-crystal-based dye-sensitized solar cells
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