Ordering of metal complex sensitizers on TiO2 nanopowders: structure of interface organic/inorganic

Valery Shklover; Michael Graetzel

doi:10.1117/12.279199

14 October 1997 Ordering of metal complex sensitizers on TiO₂ nanopowders: structure of interface organic/inorganic

Valery Shklover, Michael Graetzel

Proceedings Volume 3138, Optical Materials Technology for Energy Efficiency and Solar Energy Conversion XV; (1997) https://doi.org/10.1117/12.279199
Event: Optical Science, Engineering and Instrumentation '97, 1997, San Diego, CA, United States

Abstract

The crystal structure of three efficient Ru-sensitizers of TiO₂ anatase nanopowders are discussed in terms of formation of two-dimensional molecular packings on the anatase surfaces. The surface areas of sensitizer molecules on the flat semiconductor surfaces are calculated. The symmetry of the (001) and (101) surface of naturally grown TiO₂ anatase has been investigated using low-energy electron diffraction (LEED) technique. The first results on the orientation of sensitizer molecules on the mostly exposed surface (101) of anatase single crystal are obtained from HRTEM data. The amount of sensitizer molecules on the mostly exposed faces of anatase nanocrystals in thin colloidal TiO₂ anatase films could be estimated using crystal structure data on both sensitizers structures and anatase surface.

Citation Download Citation

Valery Shklover and Michael Graetzel "Ordering of metal complex sensitizers on TiO₂ nanopowders: structure of interface organic/inorganic", Proc. SPIE 3138, Optical Materials Technology for Energy Efficiency and Solar Energy Conversion XV, (14 October 1997); https://doi.org/10.1117/12.279199

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