Optical properties of hybrid films of inhomogeneous ensemble of gold nanoparticles coated by cyanine J-aggregates

Rezida D. Nabiullina, Anton A. Starovoytov, Igor A. Gladskikh, Daler R. Dadadzhanov

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

Hybrid nanostructures that couple plasmon and exciton resonances generate hybridized energy states, which may result in unusual light-matter interactions. In our work we studied island films from the inhomogeneous ensemble of gold nanoparticles obtained by thermal vacuum deposition, spin-coated with a molecular layer of cyanine dye, in which Jaggregates were formed. The influence of the cyanine dye length chain of conjugation and the thickness of the island film on the optical properties of the hybrid structure was studied. The increase of the molecule absorption is observed for pseudoisocyanine, in comparison with mono- and dicarbocyanine dyes. The transparency in the absorption spectrum of a hybrid film with pseudoisocyanine was observed at a wavelength of 583 nm corresponding to the maximum of the Jaggregate band, which can be explained by the strong coupling of the exciton transition in the J-aggregate with the plasmon resonance of nanoparticles.

Original languageEnglish
Title of host publicationQuantum Dots, Nanostructures, and Quantum Materials
Subtitle of host publicationGrowth, Characterization, and Modeling XVII
EditorsDiana L. Huffaker, Holger Eisele
PublisherSPIE
ISBN (Electronic)9781510633452
DOIs
StatePublished - 1 Jan 2020
Externally publishedYes
EventQuantum Dots, Nanostructures, and Quantum Materials: Growth, Characterization, and Modeling XVII 2020 - San Francisco, United States
Duration: 5 Feb 2020 → …

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume11291
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceQuantum Dots, Nanostructures, and Quantum Materials: Growth, Characterization, and Modeling XVII 2020
Country/TerritoryUnited States
CitySan Francisco
Period5/02/20 → …

Keywords

  • Cyanine dye
  • Exciton
  • Film
  • Gold
  • J-aggregate
  • Molecular form
  • Nanoparticle
  • Plasmon

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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