Spectral properties of naphthalimide dyes mixed with 4-heptyl-4'-cyanobiphenyl (7CB) in Langmuir-Blodgett films

• Autorzy: Bielejewska N. , Chrzumnicka E. , Stolarski R. , Bauman D.
• Języki publikacji: EN

Abstrakty

EN

Langmuir-Blodgett (LB) films formed of some fluorescent dyes, namely derivatives of 4-aminonaphthalimide, and their binary mixtures with the liquid crystal 4-heptyl-4'-cyanobiphenyl (7CB) have been studied. The electronic absorption and fluorescence spectra were recorded. On the basis of these spectra, the spectral properties of the dyes and the intermolecular interactions in ultrathin ordered films were determined. The conclusions about the tendency to the creation of aggregates by dye molecules in LB films have been drawn. The measurements of absorption by using linearly polarised light have allowed us to determine the arrangement of the dye and liquid crystal molecules on the air-solid substrate interface.

Słowa kluczowe

EN

Langmuir-Blodgett film; naphthalimide dye; liquid crystal; absorption spectra; fluorescence spectra

• Wydawca: Stowarzyszenie Elektryków Polskich ; Polska Akademia Nauk ; Wojskowa Akademia Techniczna im. Jarosława Dąbrowskiego
• Czasopismo: Opto-Electronics Review
• Rocznik: 2010
• Tom: Vol. 18, No. 2
• Strony: 197--207
• Opis fizyczny: Bibliogr. 33 poz., il., wykr.

Twórcy

autor

Bielejewska N.

autor

Chrzumnicka E.

autor

Stolarski R.

autor

Bauman D.

• Faculty of Technical Physics, Poznań University of Technology, 13A Nieszawska Str., 60-965 Poznań, Poland,

Bibliografia

• [1] G. Roberts: Langmuir-Blodgett Films, Plenum Press, New York, 1990.
• [2] A. Ulman: An Introduction to Ultrathin Organic Films-from Langmuir-Blodgett to Self-Assembly, Academic Press, New York, 1991.
• [3] M. C. Petty: Langmuir-Blodgett Films-An Introduction, Cambridge University Press, Cambridge, 1996.
• [4] I. H. Stapff, V. Stümpflen, H. Wendorff, D. B. Spohn and D. Möbius: Multi-layer light emitting diodes based on columnar discotics. Liq. Cryst. 23, 613-617, 1997.
• [5] J. R. Sheats, H. Antoniadis, M. Hueschen, W. Leonard, J. Miller, R. Moon, D. Roitman and A. Stocking: Organic electroluminescent devices. Science 273, 884-888, 1996.
• [6] Organic Light Emitting Devices. Synthesis, Properties and Applications, edited by K. Muellen and U. Scherf, Wiley-VCH, Weinheim, 2006.
• [7] Organic Molecular Aggregates: Electronic Excitation and Interaction Processes, edited by P. Reineker, H. Haken and H. C. Wold, Springer, Berlin, 1983.
• [8] N. Bielejewska, E. Wolarz, R. Stolarski and D. Bauman: Spectral and orientational properties of new group of naphthalene derivatives of bicarboxylic acid in liquid crystal 7CB. Opto-Electron. Rev. 16, 367-378, 2008.
• [9] R. Stolarski: Fluorescent naphthalimide dyes for polyester fibres. Fibres Text. East. Eur. 17, 91-95, 2009.
• [10] N. Bielejewska, R. Stolarski and D. Bauman: Characterization of pure and mixed Langmuir and Langmuir-Blodgett films of some fluorescent naphthalimide dyes. Z. Naturforsch. 64A, 492-502, 2009.
• [11] G. L. Gaines, Jr.: Insoluble Monolayers at Liquid-gas Interfaces. Interscience Publishers, New York, 1966.
• [12] 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.
• [13] C. N. N'soukpoé-Kossi, J. Sielewiesiuk, R. M. Leblanc, R. A. Bone and J. T. Landrum: Linear dichroism and orientational studies of carotenoid Langmuir-Blodgett films. Biochim. Biophys. Acta 940, 255-265, 1988.
• [14] O. Albrecht, W. Cumming, W. Kreuder, W. Laschevsky and H. Ringsdorf: Monolayers of rod-shaped and disc-shaped liquid crystalline compounds at the air-water interface. Colloid Polym. Sci. 264, 659-667, 1986.
• [15] M. V.d. Auweraer, C. Catry, L. Feng Chi, O. Karthaus, W. Knoll, H. Ringsdorf, M. Sawodny and C. Urban: Mono- and multilayers made from discotic liquid crystals. Thin Solid Films 210/211, 39-41, 1992.
• [16] J. Xue, C. S. Jung and M. W. Kim: Phase transitions of liquid crystal films on an air-water interface. Phys. Rev. Lett. 69, 474-477, 1992.
• [17] P. A. Antunes, C. J. L. Constantino and R. F. Aroca: Langmuir and Langmuir-Blodgett films of perylene tetracarboxylic derivatives with varying alkyl chain length: film packing and surface-enhanced fluorescence studies. Langmuir 17, 2958-2964, 2001.
• [18] D. Bauman, J. Bruździński, R. Hertmanowski and A. Buczek: Spectroscopic study of fluorescent naphthoylenebenzimidazole derivatives in Langmuir-Blodgett films: self-aggregates formation. Spectrochim. Acta A73, 668-675, 2009.
• [19] A. Bondi: Van der Waals volumes and radii. J. Phys. Chem. 68, 441-451, 1964.
• [20] N. Bielejewska, R. Stolarski and D. Bauman: Langmuir films of naphthalimide dyes. in preparation.
• [21] M. Kasha, H. R. Rawls and M. Ashraf El-Bayoumi: The exciton in molecular spectroscopy. Pure Appl. Chem. 11, 371-392, 1965.
• [22] A. S. Davydov: Theory of Molecular Excitons. Mc Graw-Hill Book Company, Inc., New York, 1962.
• [23] D. Moebius: Scheibe aggregates. Adv. Mater. 5, 437-444, 1995.
• [24] A. Miyata, D. Heard, Y. Unuma and Y. Higashigaki: Three types of aggregates of spiropyran with long and short hydrophobic alkyl chain. Thin Solid Films 210/211, 175-177, 1992.
• [25] B. Stevens and M. I. Ban: Spectrophotometric determination of enthalpies and entropies of photoassociation for dissolved aromatic hydrocarbons. T. Faraday Soc. 60, 1515-1523, 1964.
• [26] A. Kawski: Photoluminescence of Solutions. PWN, Warsaw, 1992. (in Polish)
• [27] A. K. Dutta, T. N. Misra and A. J. Pal: A spectroscopic study of nonamphiphilic pyrene assembled in Langmuir-Blodgett films: formation of aggregates. Langmuir 12, 459, 1996.
• [28] E. Johnson, R. Aroca and Y. Nagao: Electronic and vibrational spectra of films and Langmuir-Blodgett monolayers of n-octyl-3,4-perylelenedicarboximide. J. Phys. Chem. 95, 8840-8843, 1991.
• [29] M. I. Sluch, A. G. Vitukhnovsky and Lu Ande: Fluorescence of perylene-4-octadecanon in Langmuir-Blodgett films. Thin Solid Films 248, 230-233, 1994.
• [30] A. Biadasz, T. Martyński and D. Bauman: Langmuir-Blodgett films of some fluorescent dichroic dyes as studied by optical spectroscopy methods. J. Mol. Struct. 744-747, 973-978, 2005.
• [31] R. Hertmanowski, E. Chrzumnicka, T. Martyński and D. Bauman: Self-aggregates formation of 3,4,9,10-tetra-(n-alkoxy-carbonyl)-perylenes in Langmuir-Blodgett films. J. Luminescence 126, 323-332, 2007.
• [32] S. T. Wu, E. Ramos and U. Finkenzeller: Polarised UV spectroscopy of conjugated liquid crystals. J. Appl. Phys. 68, 78-85, 1990.
• [33] A. Biadasz, T. Martyński, R. Stolarski and D. Bauman: Molecular organization in binary mixtures of naphthale-nebicarboxylic acid and naphthoylenebenzimidazole with a liquid crystal in two-dimensional layers. II. Langmuir-Blodgett films. Liq. Cryst. 33, 307-319, 2006.