Time, space, and spectrally resolved studies on J-aggregate interactions in zeolite L nanochannels
Articolo
Data di Pubblicazione:
2008
Citazione:
Time, space, and spectrally resolved studies on J-aggregate interactions in zeolite L nanochannels / M. Busby, C. Blum, M. Tibben, S. Fibikar, G. Calzaferri, V. Subramaniam, L. De Cola. - In: JOURNAL OF THE AMERICAN CHEMICAL SOCIETY. - ISSN 0002-7863. - 130:33(2008), pp. 10970-10976. [10.1021/ja801178p]
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.
Tipologia IRIS:
01 - Articolo su periodico
Elenco autori:
M. Busby, C. Blum, M. Tibben, S. Fibikar, G. Calzaferri, V. Subramaniam, L. De Cola
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