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

Busby, Michael and Blum, Christian and Tibben, Marc and Fibikar, Sandra and Calzaferri, Gion and Subramaniam, Vinod and Cola De, Luisa (2008) Time, Space, and Spectrally Resolved Studies on J-Aggregate Interactions in Zeolite L Nanochannels. Journal of the American Chemical Society, 130 (33). pp. 10970-10976. ISSN 0002-7863

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Abstract:	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.
Item Type:	Article
Copyright:	© 2008 American Chemical Society
Faculty:	Science and Technology (TNW)
Research Group:	Nano-Biophysics (NBP)
Link to this item:	http://purl.utwente.nl/publications/75519
Official URL:	http://dx.doi.org/10.1021/ja801178p
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