Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Optical properties and photoinduced aggregation of cyanine dyes on silver island films

Not Accessible

Your library or personal account may give you access


The optical properties and photoinduced modification of hybrid nanostructures, which are silver island films coated with a layer of cyanine dye, were studied. Experiments were conducted on three dye homologs and films differing in the equivalent thickness of the deposited silver. It was shown that the absorption of a hybrid film is not the sum of the absorption of the molecular layer and the plasmon absorption of the silver. The near fields of nanoparticles (NPs) that form island films increase the absorption of organic molecules, with the greatest increase observed in the band of J-aggregates. The influence of the near fields can be reduced by distancing the molecules from the NPs using an insulating polymer layer. In the presence of silver NPs, the photoinduced modification of the component composition of the layers of the dyes occurs at far lower energy densities. Resonant nanosecond laser pulses lead to the aggregation of molecules in hybrid films.

© 2017 Optical Society of America

PDF Article
More Like This
Optical properties of molecular nanocrystals consisting of J-aggregates of anionic and cationic cyanine dyes

B. I. Shapiro, A. D. Nekrasov, V. S. Krivobok, and V. S. Lebedev
Opt. Express 26(23) 30324-30337 (2018)

Process dependence of morphology and microstructure of cyanine dye J-aggregate film: correlation with absorption, photo- and electroluminescence properties

Jui-Fen Chang, Fan-Ching Chien, Ching-Wei Cheng, Chen-Chih Lin, Yang-Han Lu, Hung-Sen Wei, Cheng-Chung Jaing, and Cheng-Chung Lee
Opt. Express 22(24) 29388-29397 (2014)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
Login to access Optica Member Subscription

Select as filters

Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All rights reserved, including rights for text and data mining and training of artificial technologies or similar technologies.