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Spectral and orientational properties of new group of naphthalene derivatives of bicarboxylic acid in liquid crystal 7CB

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Konferencja
Conference on Liquid Crystals : Chemistry, Physics and Applications ; (17 ; 09.2007 ; Augustów, Poland)
Języki publikacji
EN
Abstrakty
EN
The spectral and orientational properties of some dichroic fluorescent dyes (naphthalene derivatives of bicarboxylic acid) in some isotropic solvents and in an anisotropic matrix have been studied. The order parameter of the dyes in the nematogenic liquid crystal 7CB has been determined from measurements of polarized electronic absorption and fluorescence. The influence of the dye addition on the nematic-isotropic phase transition temperature of 7CB has been investigated. It was found that some of the dyes studied could be successfully utilized in guest-host liquid crystal display devices.
Twórcy
autor
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  • Faculty of Technical Physics, Poznań University of Technology, 60-965 Poznań, Poland
Bibliografia
  • 1. K. Fiksiński, D. Bauman, and A. Skibiński, “Fluorescent dyes for guest-host applications”, Dyes and Pigments 15, 203-214 (1991).
  • 2. T. Martyński, E. Mykowska, R. Stolarski, and D. Bauman, “Derivatives of N-ethyl-naphthalimide for use in nematic liquid crystal”, Dyes and Pigments 25, 115-129 (1994).
  • 3. T. Martyński, E. Mykowska, and D. Bauman, “Spectral properties of fluorescent dyes in nematic liquid crystals”, J. Mol. Structure 325, 161-167 (1994).
  • 4. J. Żmija, J. Zieliński, J. Parka, and E. Nowinowski-Kruszelnicki, “Liquid crystal displays”, PWN, Warsaw, 1993 (in Polish).
  • 5. A. Biadasz, R. Hertmanowski, T. Martyński, K. Inglot, and D. Bauman, “Langmuir films of dichroic dyes with fluorescent properties”, Dyes and Pigments 56, 209-217 (2003).
  • 6. A. Biadasz, T. Martyński, R. Stolarski, and D. Bauman, “Molecular organization in binary mixtures of derivatives of naphthalenebicarboxylic acid and naphthoylenebenzimidazole with a liquid crystal in two-dimensional layers. I. Langmuir films”, Liq. Cryst. 31, 1639-1648 (2004).
  • 7. A. Biadasz, T. Martyński, and D. Bauman, “Langmuir-Blodgett films of some fluorescent dichroic dyes as studied by optical spectroscopy methods”, J. Mol. Structure 744-747, 973-978 (2005).
  • 8. A. Biadasz, T. Martyński, R. Stolarski, and D. Bauman, “Molecular organization in binary mixtures of derivatives of naphthalenebicarboxylic acid and naphthoylenebenzimidazole with a liquid crystal in two-dimensional layers. II. Langmuir-Blodgett films”, Liq. Cryst. 33, 307-319 (2006).
  • 9. J. R. Sheats, H. Antoniadis, M. Heuschen, W. Leonard, J. Miller, R. Moon, D. Roitman, and A. Stocking, “Organic electroluminescent devices”, Science 273, 884-888 (1996).
  • 10. R. Stolarski, “Fluorescent naphthalimide dyes for polyester fibers”, Fibers and Textilies in Estern Europe (in press).
  • 11. R. Hertmanowski, Ł. Chudziński, T. Martyński, P. Stempniewicz, E. Wolarz, and D. Bauman, “Spectroscopic studies of Langmuir-Blodgett films of 3,4,9,10-tetra(heptyloxycarbonyl) perylene and its mixtures with a liquid crystal”, Liq. Cryst. 31, 791-800 (2004).
  • 12. N. K. Boardman and S. W. Thorne, “Studies of barley mutant lacking chlorophyll b. II Fluorescence properties of isolated chloroplasts”, Biochim. Biophys. Acta 153, 448-458 (1968).
  • 13. E. Wolarz and D. Bauman, “Polarized fluorescence studies of orientational order in some nematic liquid crystals doped with stilbene dye”, Mol. Cryst. Liq. Cryst. 197, 1-13 (1991).
  • 14. D. Dunmur and K. Toriyama, “Tensor properties of anisotropic materials”, in Physical Properties of Liquid Crystals, pp. 87-101, edited by D. Demus, J. Goodby, G. W. Gray, H. W. Spiess, V. Vill, Wiley-VCH, Weinheim, 1999.
  • 15. A. V. Ivashenko and V. G. Rumyantsev, “Dyes in liquid crystals”, Mol. Cryst. Liq. Cryst. 150A, 1-167 (1987).
  • 16. C. Zannoni, “Theory of time dependent fluorescence depolarization in liquid crystals”, Mol. Phys. 38, 1813-1827 (1979).
  • 17. E. Wolarz, “Determination of some dye parameters by polarized fluorescence spectroscopy”, Z. Naturforsch. 47a, 807-812 (1992).
  • 18. D. Bauman and E. Wolarz, “Orientational order in a liquid crystal side chain polymer doped with a stilbene dye”, Mol. Cryst. Liq. Cryst. Lett. 7, 161-170 (1990).
  • 19. D. Bauman, H. Moryson, and E. Wolarz, “Orientational behaviour of the guest-host systems in the smectic A and nematic phases”, Acta Phys. Polon. A81, 559-570 (1992).
  • 20. N. Bielejewska, E. Chrzumnicka, E. Mykowska, R. Przybylski, M. Szybowicz, K. Władysiak, and D. Bauman, “Comparative study of orientational order of some liquid crystals from various homologous series”, Acta Phys. Polon. A110, 777-793 (2006).
  • 21. H. Finkelmann and D. Day, “Structure of mesomorphic polymer phase”, Macromol. Chem. 180, 2269-2274 (1979).
  • 22. L. L. Chapoy, D. B. du Pre, and E. T. Samulski, “The determination of moments of the orientational distribution function in liquid crystals by the depolarization of fluorescence of probe molecules”, in Liquid Crystals and Ordered Fluids, pp. 177-189, edited by J. F. Johnson and R. S. Porter, Plenum Press, New York, London, 1978.
  • 23. E. Wolarz, E. Chrzumnicka, T. Fischer, and J. Stumpe, “Orientational properties of 1,3,4-oxadiazoles in liquid-cystalline materials determined by electronic absorption and fluorescence measurements”, Dyes and Pigments 75, 753-760 (2007).
  • 24. W. Maier and A. Saupe, “Eine einfache molekular-statistische Theorie der nematischen kristallinfluessigen Phase. Teil I.”, Z. Naturforsch. 14a, 882-889 (1959).
  • 25. R. L. Humphries, P. G. James, and G. R. Luckhurst, “Molecular field treatment of nematic liquid crystals”, J. Chem. Soc. Faraday Trans.2 68, 1031-1044 (1972).
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BWA0-0036-0003
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