Remote interfacial electron transfer from supramolecular sensitizers
- Dipartimento di Chimica dell`Universita, Ferrara (Italy)
- Johns Hopkins Univ., Baltimore, MD (United States)
There has been intense research in light-to-electrical energy conversion with ruthenium(II) polypyridyl charge transfer sensitizers anchored to wide bandgap semiconductors such as TiO{sub 2}. In an effort to achieve improved molecular control of sensitizer orientation the authors turned to bimetallic coordination compounds based on rhenium and ruthenium where the facial geometry of the Re center holds a Ru sensitizer proximate to the TiO{sub 2} surface. In this communication, the authors report the photophysical and photoelectrochemical properties of two Re-Ru linkage isomers in solution and the same isomers anchored to nanostructured TiO{sub 2} films. The results demonstrate rapid efficient interfacial electron transfer and a remarkably high light-to-electrical energy conversion even though the sensitizer is remote to the semiconductor-bound ligand.
- OSTI ID:
- 518388
- Journal Information:
- Inorganic Chemistry, Vol. 36, Issue 1; Other Information: PBD: 1 Jan 1997
- Country of Publication:
- United States
- Language:
- English
Similar Records
Efficient light-to-electrical energy conversion with dithiocarbamate-ruthenium polypyridyl sensitizers
Cation-controlled interfacial charge injection in sensitized nanocrystalline TiO{sub 2}