Инд. авторы:	Sorokin A.V., Zabolotskii A.A., Pereverzev N.V., Bespalova I.I., Yefimova S.L., Malyukin Y.V., Plekhanov A.I.
Заглавие:	Metal-Enhanced Fluorescence of Pseudoisocyanine J-Aggregates Formed in Layer-by-Layer Assembled Films
Библ. ссылка:	Sorokin A.V., Zabolotskii A.A., Pereverzev N.V., Bespalova I.I., Yefimova S.L., Malyukin Y.V., Plekhanov A.I. Metal-Enhanced Fluorescence of Pseudoisocyanine J-Aggregates Formed in Layer-by-Layer Assembled Films // Journal of Physical Chemistry C. - 2015. - Vol.119. - Iss. 5. - P.2743-2751. - ISSN 1932-7447. - EISSN 1932-7455.
Внешние системы:	DOI: 10.1021/jp5102626; SCOPUS: 2-s2.0-84922371398; WoS: 000349136400055;
Реферат:	eng: A formation of pseudoisocyanine (PIC) dye J-aggregates in the polyelectrolyte film by the layer-by-layer (LbL) assembly method has been studied. It has been shown that this process leads to significant J-band widening and fluorescence quenching as a result of increasing static disorder. To enhance the J-aggregate fluorescence properties, the effect of J-aggregate interaction with plasmon resonances of gold nanoparticles has been used. It is found that the maximal 8-fold fluorescence enhancement for PIC J-aggregates in the LbL films could be achieved at 16 nm distance between Au nanoparticles (NPs) and the J-aggregates. Plasmon influence on the J-aggregate fluorescence has been analyzed using a two-level system in the local plasmon field approximation. The model gives a good correlation with the experimental results and could be used for further studying the excitonplasmon interaction in J-aggregates.
Ключевые слова:	SPECTROSCOPY; THIN-FILMS; OPTICAL-PROPERTIES; PHOTOPHYSICAL PROPERTY; DYNAMICS; CYANINE DYE; SPIN-COATING METHOD; PLASMON-CONTROLLED FLUORESCENCE; COMPOSITE NANOPARTICLES; PHOTOSTABILITY;
Издано:	2015
Физ. характеристика:	с.2743-2751