Abstract
The abilities of a variety of inorganic and organic compounds to act as electron transfer quenchable light absorbers in thin polymeric films have been examined. The compounds, each of which contains a primary amine, were chemically bound in precast chlorosulfonated polystyrene films by sulfonamide bond formation. Visible photolysis of the films in the presence of an oxidative quencher and a reductive scavenger leads to a sustained photocurrent response from 14 of the 18 compounds studied. Differences in the photocurrent output as the chromophore is changed can be explained qualitatively based on a kinetic model whose key steps are optical excitation of the absorber followed by excited state electron transfer.
Original language | English (US) |
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Pages (from-to) | 419-433 |
Number of pages | 15 |
Journal | Journal of Photochemistry and Photobiology, A: Chemistry |
Volume | 48 |
Issue number | 2-3 |
DOIs | |
State | Published - Aug 1989 |
Funding
We thank the Department of Energy under grant no. DE-FG05-86ER13633 for support of this research.
ASJC Scopus subject areas
- General Chemistry
- General Chemical Engineering
- General Physics and Astronomy