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Effect of relative humidity on the optical and waveguide properties of thin chitosan films

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Abstract

We have measured the optical characteristics of thin films based on various ion forms of chitosan and studied their mutual correlation. Using the spectral ellipsometry and mode spectroscopy techniques, it has been established that the optical characteristics of chitosan depend on the relative humidity (RH) of the ambient medium. All samples are characterized by threshold RH values, at which the optical characteristics exhibit a change. The obtained data allow chitosan to be classified as a promising sensor material with the optical properties controlled by relative humidity of the ambient medium.

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Authors and Affiliations

  1. Institute of Automation and Control Processes, Far East Branch, Russian Academy of Sciences, Vladivostok, 690041, Russia

    S. S. Voznesenskiy, A. A. Sergeev, A. Yu. Mironenko, S. Yu. Bratskaya & V. A. Kolchinskiy

  2. Institute of Chemistry, Far East Branch, Russian Academy of Sciences, Vladivostok, 690022, Russia

    S. S. Voznesenskiy, A. A. Sergeev, A. Yu. Mironenko, S. Yu. Bratskaya & V. A. Kolchinskiy

Authors
  1. S. S. Voznesenskiy
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  2. A. A. Sergeev
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  3. A. Yu. Mironenko
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  4. S. Yu. Bratskaya
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  5. V. A. Kolchinskiy
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Correspondence to S. S. Voznesenskiy.

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Original Russian Text © S.S. Voznesenskiy, A.A. Sergeev, A.Yu. Mironenko, S.Yu. Bratskaya, V.A. Kolchinskiy, 2012, published in Pis’ma v Zhurnal Tekhnicheskoi Fiziki, 2012, Vol. 38, No. 5, pp. 56–62.

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Voznesenskiy, S.S., Sergeev, A.A., Mironenko, A.Y. et al. Effect of relative humidity on the optical and waveguide properties of thin chitosan films. Tech. Phys. Lett. 38, 228–230 (2012). https://doi.org/10.1134/S1063785012030169

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  • DOI: https://doi.org/10.1134/S1063785012030169

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