Angular Dependence of Electronic Excitation Energy Transfer Efficiency Between Dye Molecules in a Photonic Crystal
| Autor: | Alexander M. Saletsky, S. A. Svyakhovskiy, Yu. A. Strokova |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Photon
Materials science Silicon Physics::Optics chemistry.chemical_element 02 engineering and technology 01 natural sciences Molecular physics Condensed Matter::Materials Science chemistry.chemical_compound Rhodamine B Physics::Chemical Physics Spectroscopy Photonic crystal business.industry 010401 analytical chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics Acceptor 0104 chemical sciences chemistry Photonics 0210 nano-technology business Luminescence Excitation |
| Zdroj: | Journal of Applied Spectroscopy. 85:1013-1016 |
| ISSN: | 1573-8647 0021-9037 |
| Popis: | Spectral and luminescent characteristics of a mixture of coumarin 7 and rhodamine B dyes infiltrated into a onedimensional photonic crystal of mesoporous silicon are studied. Electronic excitation energy transfer between molecules that is associated with fluorescence quenching of the donor (coumarin 7) and enhancement of acceptor emission (rhodamine B) is detected. The angular dependence of excitation energy transfer efficiency in the donor–acceptor pair is due to depletion of available photon modes for donor radiative decay in a photonic crystal as compared with a homogeneous medium and depends on the spectral position of the photonic stop zone of a photonic crystal. |
| Databáze: | OpenAIRE |
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