Time, Space. and Spectrally Resolved Studies on J-Aggregate Interactions in Zeolite L Nanochannels

Michael Busby, Christian Blum, Marc Tibben, Sandra Fibikar, Gion Calzaferri, Vinod Subramaniam, Luisa De Cola, L. de Cola

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Temporally and spectrally resolved confocal microscopy has been used to explore the behavior of pyronine intercalated zeolite L crystals at different loadings. The low pyronine loading of 0.6% exhibits photophysical behavior similar to that of the free molecule in solution, indicating molecules are isolated from each other in the crystal channels. The higher loading of 20% results in a dye gradient along the channel axis, and the presence of an additional red-shifted spectroscopic transition, with shorter lifetimes. The new band is assigned to an inline arrangement of the molecules undergoing a J-aggregate-type coupling, a process so far not observed in subnanometer channels.
Original languageUndefined
Pages (from-to)-
JournalJournal of the American Chemical Society
Issue number33
Publication statusPublished - 2008


  • METIS-248976
  • IR-75519

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