Journal
EUROPEAN PHYSICAL JOURNAL-APPLIED PHYSICS
Volume 55, Issue 2, Pages -Publisher
CAMBRIDGE UNIV PRESS
DOI: 10.1051/epjap/2011100417
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Funding
- Academy of Sciences of the Czech Republic [KAN100500652]
- Czech Science Foundation [P208/10/0941, 203/08/H032]
- Science Foundation of the Charles University [166410]
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Aggregated systems of silver (Ag) and gold (Au) nanoparticles coated with cationic polythiophene were prepared, which showed optical properties typical for strongly coupled plasmonic excitations. The procedure allowed tune up the three-dimensional arrangement of nanoparticles assembly for achieving strong SERS effect at the excitation wavelength depending on the polymer concentration. By combination with an anionic derivative of polythiophene thin multilayer films composed of alternating anionic and cationic polythiophene with mutually interacting plasmonic Au nanoparticles were successfully prepared using layer-by-layer deposition.
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