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MULTIPHONON TRANSITION AND TEMPERATURE DEPEN-DENCE OF PHOTOLUMINESCENCE SPECTRA OF DYE J-AGGREGATE LANGMIUR-BLODGETT FILMS

LIANG PEI-HUI ZHANG WEI-QING A. MüLLER

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MULTIPHONON TRANSITION AND TEMPERATURE DEPEN-DENCE OF PHOTOLUMINESCENCE SPECTRA OF DYE J-AGGREGATE LANGMIUR-BLODGETT FILMS

LIANG PEI-HUI, ZHANG WEI-QING, A. MüLLER
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  • In temperature range of 20K to 300K, we measuded photoluminescence spectra of heterogeneous J-aggregate Langmiur-Blodgett (LB) films made of three kinds of cyanine dye. With temperature reduced, while the intensity of J-peak, the zero phonon line increased, anomalous enhancement of the phonon sideband was observed. Analysis shows that J-aggregatc LB films are of characteristics like that of low dimensional crystal, they have strong phonon coupling, and nonradiative transition plays important role.
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  • Received Date:  14 October 1990
  • Published Online:  01 July 2005

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