Plasmon Processes of Electronic Energy Transfer to Adsorbed Rhodamine 6G During Clustering of Silver Nanoparticles on the Surface of Macroporous Silica
| Autor: | Valery V. Bryukhanov, A. Yu. Zyubin, N. S. Tikhomirova, V. A. Slezhkin, I. G. Samusev |
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| Rok vydání: | 2017 |
| Předmět: |
Materials science
Nuclear Theory Surface plasmon Physics::Optics Nanoparticle Computer Science::Computation and Language (Computational Linguistics and Natural Language and Speech Processing) 02 engineering and technology 021001 nanoscience & nanotechnology Condensed Matter Physics Photochemistry 01 natural sciences Fluorescence Silver nanoparticle 010309 optics Rhodamine 6G chemistry.chemical_compound Adsorption chemistry 0103 physical sciences Molecule Nuclear Experiment 0210 nano-technology Spectroscopy Plasmon |
| Zdroj: | Journal of Applied Spectroscopy. 84:261-267 |
| ISSN: | 1573-8647 0021-9037 |
| Popis: | Spectral and kinetic features of the optical conversion of electronic energy were studied during dipole–dipole transfer of electronic excitation between silver (Ag) sol nanoparticles (NPs) of small and medium sizes and rhodamine 6G (R6G) molecules on the surface of a macroporous silica (C-80) with an irregular pore structure. It was found that Ag NPs were adsorbed unevenly to the C-80 surface with clusters of differently sized Ag NPs distributed as islets. Threshold gain of the light scattered by surface plasmons was detected at a certain concentration of Ag NPs on the silica. Local plasmon excitations in Ag NP clusters on the silica were evaluated quantitatively. |
| Databáze: | OpenAIRE |
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