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Surface‐enhanced fluorescence of in situ synthesized polysilanesilver nanoparticles |
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| Authors: | Gabriela Sacarescu Elena Taran Bogdan C Donose Mihaela Simionescu Valeria Harabagiu Liviu Sacarescu |
| Affiliation: | 1. ‘Petru Poni’ Institute of Macromolecular Chemistry, Aleea Gr. Ghica Voda 41 A, Iasi 700487, Romania;2. The University of Queensland, Australian Institute for Bioengineering and Nanotechnology (AIBN)/Australian National Fabrication Facility—Queensland Node (ANFF‐Q), St Lucia 4067, Australia;3. The University of Queensland, Advanced Water Management Centre (AWMC), St Lucia 4067, Australia |
| Abstract: | To produce surface plasmons, silver nanoparticles are synthesized in situ in a pseudo‐template system based on polyhydrosilanes. Adsorption on the silver nanoparticle surface produces a thin layer of polymer with properties different from those of bulk polysilane. The metal‐adsorbed polymer layer serves as a spacer between the polysilane fluorophore and the plasmonic nanoparticle. This prevents quenching of the polysilane emission and leads to a strong surface‐enhanced fluorescence through coupling of surface plasmons having a resonance frequency that matches the emission frequency of the polymeric emitter. Copyright © 2012 Society of Chemical Industry |
| Keywords: | polysilanes nanocomposites nanoparticles surface‐enhanced fluorescence |