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Spectroscopic and Morphological Properties of Divinylbenzoxazolylbiphenyl Thin Films

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Abstract

The thin organic films based on 4,4′-bis-[(Z)-1-(1,3-benzoxazol-2-yl-2-ethenyl)]biphenyl and its partly fluorinated derivatives are studied. Absorption, luminescence, and excitation spectra, luminescence decay and film morphology were found to depend sensitively on the changes in molecule structure, nature and temperature of the substrate, as well as the thermovacuum deposition rate, being the origins of bad reproducibility of the optical properties of such films. Molecular aggregation with chromophore dipoles arranged parallel to each other has been observed in absorption and luminescence spectra. The fluorescence characteristics can be explained by the combination of radiation of aggregated and non-aggregated molecules. The main characteristics of the molecules under study are calculated using DFT approach. The unusual behaviour of photodegradation in fluorinated film is found.

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Authors and Affiliations

  1. B.I.Stepanov Institute of Physics of the National Academy of Sciences of Belarus, Nezalezhnastsi Ave. 68, 220072, Minsk, Belarus

    Alexander V. Kukhta, Iryna N. Kukhta, Eduard E. Kolesnik & Alexander P. Stupak

  2. Institute of Chemistry of New Materials of the National Academy of Sciences of Belarus, F.Skaryny Str. 36, 220141, Minsk, Belarus

    Vyacheslav K. Olkhovic, Dmitry A. Vasilevskii, Nikolai A. Galinovskii & Gennadii K. Javnerko

Authors
  1. Alexander V. Kukhta
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  2. Iryna N. Kukhta
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  3. Eduard E. Kolesnik
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  4. Alexander P. Stupak
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  5. Vyacheslav K. Olkhovic
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  6. Dmitry A. Vasilevskii
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  7. Nikolai A. Galinovskii
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  8. Gennadii K. Javnerko
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Correspondence to Alexander V. Kukhta.

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Kukhta, A.V., Kukhta, I.N., Kolesnik, E.E. et al. Spectroscopic and Morphological Properties of Divinylbenzoxazolylbiphenyl Thin Films. J Fluoresc 19, 989–996 (2009). https://doi.org/10.1007/s10895-009-0498-3

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  • DOI: https://doi.org/10.1007/s10895-009-0498-3

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