Optical control of photogenerated ion pair lifetimes: An approach to a molecular switch

Martin P. Debreczeny, Walter A. Svec, Michael R. Wasielewski

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Abstract

A prototype molecular switch is demonstrated that works on the principle that the local electric field produced by one photogenerated ion pair (D1- A1) can influence the rate constants for photoinduced electron transfer and recombination in a second donor-acceptor pair (A2-D2). Two ultrafast laser pulses were used to control the rate of a photoinduced electron transfer reaction within a molecule that consists of two covalently linked electron donor-acceptor pairs fixed in a linear structure, D1-A1-A2-D2. This type of molecular architecture may lead to the development of electronic devices that function on the molecular length scale.

Original languageEnglish
Pages (from-to)584-587
Number of pages4
JournalScience
Volume274
Issue number5287
DOIs
Publication statusPublished - Jan 1 1996

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ASJC Scopus subject areas

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