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Optics and Spectroscopy, 2023, Volume 131, Issue 7, Pages 1011–1018
DOI: https://doi.org/10.21883/OS.2023.07.56139.5120-23 (Mi os1409) 		 
Plasmonics

Formation of silver nanoparticles oligomers obtained via laser ablation in a liquid by sequential centrifugation and ultrasonication: tunable long-wavelength shift of plasmon resonance for biomedical applications

D. R. Dadadzhanova, A. V. Palekhovaa, G. Alexana, M. A. Baranova, N. A. Maslovab

a International Research and Educational Center for Physics of Nanostructures, ITMO University, St. Petersburg
b Research Park, St. Petersburg State University, Saint Petersburg, Russia
Full-text PDF (1107 kB)
DOI: https://doi.org/10.21883/OS.2023.07.56139.5120-23
Abstract: A relatively simple physical method has been proposed for fabrication of stable oligomers of silver nanoparticles, preliminarily obtained by pulsed laser ablation of a metal target in a liquid. Oligomers of silver nanoparticles are formed in an aqueous solution after prolonged centrifugation at 18000 g and subsequent ultrasonication of the initial colloidal solution of spherical nanoparticles obtained by laser ablation. The plasmon resonance in oligomers is shifted relative to the plasmon resonance in spherical nanoparticles to the long wavelength region by 140 nm.
Keywords: plasmon resonance, silver nanoparticles, laser ablation, extinction.
Funding agency Grant number
Russian Science Foundation 22-72-10057
This work was supported by the Russian Science Foundation (Project 22-72-10057), https://rscf.ru/en/project/22-72-10057/.
Received: 12.05.2023
Revised: 12.05.2023
Accepted: 26.05.2023
Bibliographic databases:
Document Type: Article
Language: Russian
Citation: D. R. Dadadzhanov, A. V. Palekhova, G. Alexan, M. A. Baranov, N. A. Maslova, “Formation of silver nanoparticles oligomers obtained via laser ablation in a liquid by sequential centrifugation and ultrasonication: tunable long-wavelength shift of plasmon resonance for biomedical applications”, Optics and Spectroscopy, 131:7 (2023), 1011–1018
Citation in format AMSBIB
\Bibitem{DadPalAle23}
\by D.~R.~Dadadzhanov, A.~V.~Palekhova, G.~Alexan, M.~A.~Baranov, N.~A.~Maslova
\paper Formation of silver nanoparticles oligomers obtained via laser ablation in a liquid by sequential centrifugation and ultrasonication: tunable long-wavelength shift of plasmon resonance for biomedical applications
\jour Optics and Spectroscopy
\yr 2023
\vol 131
\issue 7
\pages 1011--1018
\mathnet{http://mi.mathnet.ru/os1409}
\crossref{https://doi.org/10.21883/OS.2023.07.56139.5120-23}
\elib{https://elibrary.ru/item.asp?id=54500837}
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