Supermolecular Control of Charge Transfer in Dye‐Sensitized Nanocrystalline TiO₂ Films: Towards a Quantitative Structure–Function Relationship

A trial separation: A dye-sensitized nanocrystalline TiO2 film (see scheme) is prepared in which a remarkably long-lived (4 s) charge-separated state can be generated. The key parameter that controls charge transfer at the dye/TiO2 interface is shown to be the spatial separation between the cation center of the dye and the electrode surface. Supporting information for this article is available on the WWW under http://www.wiley-vch.de/contents/jc_2002/2005/z500363_s.pdf or from the author. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.