Abstract
AbstractLight‐induced hole transfer across a membrane has been investigated with time resolved methods. The membrane has been assembled with the Langmuir‐Blodgett technique from two monolayers, one containing a modified dye, N,N'‐distearyl‐2,2'‐phenylindolocarbocyanine, and the other a modified anthracene molecule, 7‐(2‐anthryl)‐1 heptanoic acid. An anthracene single crystal has been employed as electrode to measure injection of holes from the above membrane as time‐resolved photocurrent transient with 100ps time resolution. The fluorescence decay of the excited dye layer was measured with 10ps time resolution. Comparison of both signals shows that the reaction sequence involves energy migration to dye aggregates and from there hole transfer through a short alkane chain tunneling barrier to the anthracene monolayer.
Published Version
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