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Nanostructure of sol-gel derived TiO_2 for thin films on glass substrates measured by small angle scattering of synchrotron light

Nanosized TiO2 thin films on flat glass substrate of thickness ranging from 3 to 12.5 micrometer were prepared using sol-gel procedure. The TiO2 crystallite size increased in average particle radii values <R> from 2.5 nm to 3.7 nm with increase of film thickness up to 12.5 micrometer. A new SAXS (small angle X-ray scattering) beamline at synchrotron ELETTRA was used to determine grain sizes and specific surface area of these films.

TiO_2; flms; solar cells; nanostructure; sol-gel; small angle scattering; synchrotron light

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