Photoinduced Ultrafast Dye-to-Semiconductor Electron Injection from Nonthermalized and Thermalized Donor States
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- 22 December 2001
- journal article
- research article
- Published by American Chemical Society (ACS) in Journal of the American Chemical Society
- Vol. 124 (3) , 489-493
- https://doi.org/10.1021/ja016561n
Abstract
Electron injection from the transition metal complex Ru(dcbpy)2(NCS)2 (dcbpy = 4,4‘-dicarboxy-2,2‘-bipyridine) into a titanium dioxide nanocrystalline film occurs on the femto- and picosecond time scales. Here we show that the dominating part of the electron transfer proceeds extremely rapidly from the initially populated, vibronically nonthermalized, singlet excited state, prior to electronic and nuclear relaxation of the molecule. The results are especially relevant to the understanding and design of molecular-based photovoltaic devices and artificial photosynthetic assemblies.Keywords
This publication has 22 references indexed in Scilit:
- Ultrafast Electron Transfer Dynamics from Molecular Adsorbates to Semiconductor Nanocrystalline Thin FilmsThe Journal of Physical Chemistry B, 2001
- Electron Injection and Recombination in Fluorescein 27-Sensitized TiO2 Thin FilmsThe Journal of Physical Chemistry B, 2001
- Molecular PhotovoltaicsAccounts of Chemical Research, 2000
- Pump−Probe Spectroscopy of Ultrafast Electron Injection from the Excited State of an Anchored Chromophore to a Semiconductor Surface in UHV: A Theoretical ModelThe Journal of Physical Chemistry B, 1999
- Comment on “Measurement of Ultrafast Photoinduced Electron Transfer from Chemically Anchored Ru−Dye Molecules into Empty Electronic States in a Colloidal Anatase TiO2 Film”The Journal of Physical Chemistry B, 1998
- Photosensitization of TiO2 by [FeII(2,2‘-bipyridine-4,4‘-dicarboxylic acid)2(CN)2]: Band Selective Electron Injection from Ultra-Short-Lived Excited StatesJournal of the American Chemical Society, 1998
- Measurement of Ultrafast Photoinduced Electron Transfer from Chemically Anchored Ru-Dye Molecules into Empty Electronic States in a Colloidal Anatase TiO2 FilmThe Journal of Physical Chemistry B, 1997
- The photochemical conversion and storage of solar energy: An historical perspectiveSolar Energy Materials and Solar Cells, 1995
- Conversion of light to electricity by cis-X2bis(2,2'-bipyridyl-4,4'-dicarboxylate)ruthenium(II) charge-transfer sensitizers (X = Cl-, Br-, I-, CN-, and SCN-) on nanocrystalline titanium dioxide electrodesJournal of the American Chemical Society, 1993
- A low-cost, high-efficiency solar cell based on dye-sensitized colloidal TiO2 filmsNature, 1991