Abstract
The transient absorption and transient photocurrent kinetics of photoinduced intermolecular electron transfer reactions in solution can show considerable discrepancies at different molecular oxygen concentrations. The lifetimes of the radical anions observed by transient absorption are decreased in the presence of oxygen, and this is explained by a secondary charge shift reaction of the primary radical anion to oxygen, generating the oxygen anion. Transient photocurrent kinetics are only slightly affected, because no net charge loss results from this mechanism and only the mobility of the corresponding charge carriers changes.
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Schedule a callMore From: Journal of Photochemistry & Photobiology, A: Chemistry
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