1994
DOI: 10.1016/0022-2313(94)90395-6
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Picosecond luminescence and excitation energy transfer in J- and H-aggregates of cyamine dyes on colloidal silica

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Cited by 21 publications
(25 citation statements)
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“…Exciton dynamics and radiative recombination in J-aggregates have been a subject of intense investigations due to the fact that these organized molecular assemblies possess remarkable properties such as sharp absorption and fluorescence lineshapes, as well as short radiative lifetimes, mainly due to delocalization of Frenkel excitons over a large number of molecules. Despite a number of publications on EET in J-aggregates, only some of them consider deviation from the classical Förster theory, for example, account of energy transfer to optically dark states. , In many works, however, efficient EET between donor and acceptor J-aggregates whose emission and absorption spectra do not even overlap remained unexplained. , …”
Section: Introductionmentioning
confidence: 99%
“…Exciton dynamics and radiative recombination in J-aggregates have been a subject of intense investigations due to the fact that these organized molecular assemblies possess remarkable properties such as sharp absorption and fluorescence lineshapes, as well as short radiative lifetimes, mainly due to delocalization of Frenkel excitons over a large number of molecules. Despite a number of publications on EET in J-aggregates, only some of them consider deviation from the classical Förster theory, for example, account of energy transfer to optically dark states. , In many works, however, efficient EET between donor and acceptor J-aggregates whose emission and absorption spectra do not even overlap remained unexplained. , …”
Section: Introductionmentioning
confidence: 99%
“…The materials with the spectral hole burning property might be potentially used as a new kind of memory storage media. Other interesting spectral phenomena and properties of PIC J-aggregates are nonlinear optical properties (5), fluorescence (6), energy transfer to other compounds (7), and collective phonon scattering (8). PIC is an important component of materials used for signal processing and light harvesting (9,10).…”
Section: Introductionmentioning
confidence: 99%
“…[14][15][16][17][18] Although the role of molecular aggregates as photosensitizers in color photography has been well recognized, [19][20][21][22] spectroscopic studies on the role of the excited states of dye aggregates in these processes are rather limited. 18,[23][24][25][26][27] In our previous studies, [28][29][30][31] it has been shown that thiazine, oxazine, and rhodamine dyes readily form H-aggregates on negatively charged SnO 2 and SiO 2 nanocrystallites. As a result of the strong electrostatic interaction between cationic dye and negatively charged oxide surfaces, dye aggregation can be seen even at very low concentrations (<10 -5 M).…”
Section: Introductionmentioning
confidence: 99%