Gold nanoparticle microemulsion films with tunable surface plasmon resonance signal

Gold nanoparticle microemulsion films with tunable surface plasmon resonance signal Full article

Journal

Colloids and Surfaces A: Physicochemical and Engineering Aspects
ISSN: 1873-4359 , E-ISSN: 0927-7757

Output data

Year: 2024, Volume: 701, Article number : 134904, Pages count : 11 DOI: 10.1016/j.colsurfa.2024.134904

Tags

Dip-coating, Organosol, Nanoparticle, Plasmon effect, Roughness

Authors

Kolodin A.N. ¹ , Syrokvashin M.M. ¹ , Korotaev E.V. ¹

Affiliations

1	Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences, 3, Acad. Lavrentiev Avenue, Novosibirsk 630090, Russia

Composite films were prepared by the dip-coating method. An organosol of Au nanoparticles (6.3±0.4 nm) was used as the reaction mixture. The nanoparticles were stabilized with sodium bis(2-ethylhexyl) sulfosuccinate (AOT). The prepared films were formed of an AOT layer with encapsulated Au nanoparticles (i.e. Au@AOT films). The films demonstrated a stable plasmon effect. The variation of the immersion number of the glass substrate from 1 to 10 allowed the adjustment of the plasmonic properties. The absorption intensity and maximum wavelength of the surface plasmon resonance were found to change from 0.183 to 0.245 and from 529 ±2 to 539±2 nm, respectively. The plasmonic properties were found to correlate with the film thickness, roughness, and morphology. An increase in the concentration of Au nanoparticles improves the film’s mechanical strength and wettability.

Kolodin A.N. , Syrokvashin M.M. , Korotaev E.V.
Gold nanoparticle microemulsion films with tunable surface plasmon resonance signal
Colloids and Surfaces A: Physicochemical and Engineering Aspects. 2024. V.701. 134904 :1-11. DOI: 10.1016/j.colsurfa.2024.134904 WOS Scopus РИНЦ OpenAlex

Published print:

Nov 20, 2024

Web of science:	WOS:001283962700001
Scopus:	2-s2.0-85199779679
Elibrary:	73751910
OpenAlex:	W4400928111

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