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Proceedings Paper

Optical properties of cyanine dyes in nanotubes of chrysotile asbestos
Author(s): Anton A. Starovoytov; Tigran A. Vartanyan; Vladimir I. Belotitskii; Yuri A. Kumzerov; Anna A. Sysoeva
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Paper Abstract

Optical properties of cyanine dye molecules incorporated in nanotubes of natural chrysotile asbestos are studied. The absorption and fluorescence spectra of dye in asbestos have the similar shapes as in the ethanol solution, apart from small blue shift of the maxima. The Stokes shift in asbestos is smaller than in the ethanol solution. The fluorescence decay times of the dyes in asbestos nanotubes are found to be larger than that in the case of thin films of the same dyes formed on the transparent dielectric supports. This observation is rationalized in terms of the stereoisomerization hindrance in the excited electronic state of dye molecules. At the same time linear dichroism and fluorescence anisotropy observed in the experiment indicate that the embedded dye molecules are well-isolated monomer oriented predominantly along asbestos nanotubes.

Paper Details

Date Published: 28 August 2017
PDF: 6 pages
Proc. SPIE 10344, Nanophotonic Materials XIV, 103440T (28 August 2017); doi: 10.1117/12.2274721
Show Author Affiliations
Anton A. Starovoytov, ITMO Univ. (Russian Federation)
Tigran A. Vartanyan, ITMO Univ. (Russian Federation)
Vladimir I. Belotitskii, Ioffe Physical-Technical Institute (Russian Federation)
Yuri A. Kumzerov, Ioffe Physical-Technical Institute (Russian Federation)
Anna A. Sysoeva, Ioffe Physical-Technical Institute (Russian Federation)

Published in SPIE Proceedings Vol. 10344:
Nanophotonic Materials XIV
Stefano Cabrini; Gilles Lérondel; Adam M. Schwartzberg; Taleb Mokari, Editor(s)

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