Equilibrium component composition and structure of nanometer cyanine dye layers and their photoinduced modification
Equilibrium component composition and structure of nanometer cyanine dye layers and their photoinduced modification
We study the component composition of cyanine dye layers on different substrates (glass, mica, and sapphire) by the absorption spectroscopy. We found that the molecular layer contains isomers of the molecules being coated and aggregated components (dimers and J-aggregates). The relative concentrations of the components depend on the structure of dye and its surface concentration. The single laser pulses of several nanosecond length lead to irreversible changes in the structure of molecular nanolayers and result in the change of the relative concentrations of the layer components. Two types of the spatial orientation of the nanocomponents with different orientations with respect to the surface are formed. One of these types of the orientation transforms into another type under the action of pulsed laser radiation. The above changes were found for all the dielectric substrates studied.
cyanine dye, dimer, isomer, J-aggregate, laser, polymethine dye, stereoisomerisation, thin film
Starovoytov, Anton A.
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Kaliteevskaya, Elena N.
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Krutyakova, Valentina P.
6cb9dbac-9e35-4bb2-96a7-56a2f057086f
Razumova, Tatiana K.
fe179a1f-4c29-4bbf-a6c7-fca6460a4bb5
Toropov, Nikita A.
29c05925-314b-472c-918e-2ad69c08755f
2012
Starovoytov, Anton A.
a7abddb3-5f75-40cc-a450-00ece38d1dba
Kaliteevskaya, Elena N.
21c96eaa-5262-4c6d-abe5-5147a666e67d
Krutyakova, Valentina P.
6cb9dbac-9e35-4bb2-96a7-56a2f057086f
Razumova, Tatiana K.
fe179a1f-4c29-4bbf-a6c7-fca6460a4bb5
Toropov, Nikita A.
29c05925-314b-472c-918e-2ad69c08755f
Starovoytov, Anton A., Kaliteevskaya, Elena N., Krutyakova, Valentina P., Razumova, Tatiana K. and Toropov, Nikita A.
(2012)
Equilibrium component composition and structure of nanometer cyanine dye layers and their photoinduced modification.
In Organic Photonics V.
vol. 8435
(doi:10.1117/12.926866).
Record type:
Conference or Workshop Item
(Paper)
Abstract
We study the component composition of cyanine dye layers on different substrates (glass, mica, and sapphire) by the absorption spectroscopy. We found that the molecular layer contains isomers of the molecules being coated and aggregated components (dimers and J-aggregates). The relative concentrations of the components depend on the structure of dye and its surface concentration. The single laser pulses of several nanosecond length lead to irreversible changes in the structure of molecular nanolayers and result in the change of the relative concentrations of the layer components. Two types of the spatial orientation of the nanocomponents with different orientations with respect to the surface are formed. One of these types of the orientation transforms into another type under the action of pulsed laser radiation. The above changes were found for all the dielectric substrates studied.
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Published date: 2012
Venue - Dates:
Organic Photonics V, , Brussels, Belgium, 2012-04-16 - 2012-04-18
Keywords:
cyanine dye, dimer, isomer, J-aggregate, laser, polymethine dye, stereoisomerisation, thin film
Identifiers
Local EPrints ID: 498759
URI: http://eprints.soton.ac.uk/id/eprint/498759
ISSN: 0277-786X
PURE UUID: 1cbf225b-b129-4b79-8caa-39dab3a5513b
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Date deposited: 27 Feb 2025 17:58
Last modified: 28 Feb 2025 03:12
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Contributors
Author:
Anton A. Starovoytov
Author:
Elena N. Kaliteevskaya
Author:
Valentina P. Krutyakova
Author:
Tatiana K. Razumova
Author:
Nikita A. Toropov
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