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Photoluminescence, optical transmission and reflection of Alq₃ layers obtained by thermal evaporation deposition

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Warianty tytułu
Konferencja
International Conference on Solid State Crystals : Material Science and Applications (4ICSSC) and Polish Conference on Crystal Growth (7PCCG) ; (16-20.05.2004 ; Zakopane-Kościelisko, Poland)
Języki publikacji
EN
Abstrakty
EN
In this paper we present the photoluminescence emission spectra (PL), photoluminescence excitation spectra (PLE), transmission (TS) and reflection (RS) spectra of tris(8-hydroxyquinoline) aluminum(III) (Alq₃) layers grown by thermal evaporation deposition method. All investigated samples exhibit strong luminescence in the wide temperature range from 13 K to room temperature and for different energies of excitation. In our experiments, we have focused on temperature dependence of photoluminescence. The thermal quenching of PL in the measured samples has been found. We have observed also distinct oscillations from reflection and transmission measurements. The energies of thermal activation estimated by means of configuration coordinate diagram and also the layer thickness and refractive index are presented.
Słowa kluczowe
Twórcy
  • Institute of Physics, UMK, Grudziądzka 5, 87-100 Toruń, Poland
autor
  • Institute of Physics, UMK, Grudziądzka 5, 87-100 Toruń, Poland
autor
  • Institute of Physics, UMK, Grudziądzka 5, 87-100 Toruń, Poland
autor
  • Institute of Physics, UMK, Grudziądzka 5, 87-100 Toruń, Poland
  • Institute of Physics, UMK, Grudziądzka 5, 87-100 Toruń, Poland
autor
  • Institute of Physics, UMK, Grudziądzka 5, 87-100 Toruń, Poland
Bibliografia
  • 1. V.E. Choong, Y. Park, and T. Gao, “Photoluminescence quenching of Alq3 by metal deposition: A surface analytical investigation”, J. Vac. Sci. Technol. A16, (1998).
  • 2. K.L. Wang, B. Lai, M. Lu, X. Zhou, L.S. Liao, X.M. Ding, X.Y. Hou, and S.T. Lee, “Electronic structure and energy level alignment of Alq3/Al2O3/Al and Alq3/Al interfaces studied by ultraviolet photoemission spectroscopy”, Thin Solid Films 363, 178-181 (2000).
  • 3. M.J. Felton, “Thinner lighter better brighter.”, Today’s Chemist at Work 10, 30-34 (2001).
  • 4. D.A. Minkov, “Calculation of the optical constants of a thin layer upon a transparent substrate from the reflection spectrum”, J. Phys. D: Appl. Phys. 22, 1157-1161 (1989).
  • 5. C. Baban and G.I. Rusu, “On the structural and optical characteristics of CdSe thin films”, Applied Surface Science 211, 6-12 (2003).
  • 6. E. Marquez, J.M. Gonzalez-Leal, R. Prieto-Alcon, M. Vlcek, A. Stronski, T. Wagner, and D. Minkov, “Optical characterization of thermally evaporated thin films of As40S40Se20 chalcogenide glass by reflectance measurements”, Appl. Phys. A67, 371-378 (1998).
  • 7. D. Poelman and P.F. Smet, “Methods for the determination of the optical constants of thin films from single transmission measurements: a critical review”, J. Phys. D: Appl. Phys. 36, 1850-1857 (2003).
  • 8. H.J. Lozykowski and V.K. Shastri, “Excitonic and Raman properties of ZnSe/Zn1-xCdxSe strained-layer quantum wells”, J. Appl. Phys. 69, 3235-3242 (1991).
  • 9. K. Akers, R. Aroca, AM. Hor, and RO. Loutfy, “Molecular organization in perylene tetracarboxylic di-imide solid films”, Spectrochimica Acta Part A - Molecular Spectroscopy 44A, 1129-1135 (1988).
  • 10. V. Bulovic, PE. Burrows, SR. Forrest, JA. Cronin, and ME. Thompson, “Study of localized and extended excitons in 3,4,9,10-perylenetetracarboxylic dianhydride (PTCDA). I. Spectroscopic properties of thin films and solutions”, Chemical Physics 210, 11-12 (1996).
  • 11. M. Makowska-Janusik, J. Sanetra, H. Palmer, D. Bogdał, E. Gondek, I.V. Kityk, “Absorption spectra of poly-N-vinylcarbazole derivatives by experiment and simulation”, European Polymer Journal 40, 799 (2004).
  • 12. A.B. Djurisic, C.Y. Kwong, W.L. Guo, T.W. Lau, E.H. Li, Z.T. Liu, H.S. Kwok, L.S.M. Lam, and W.L. Chan, “Spectroscopic ellipsometry of the optical functions of tris (8-hydroxyquinoline) aluminium (Alq3)”.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BWA2-0010-0029
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