Abstract:
Polyfluorene copolymers containing 33 mol% of 2,5-difluoro-1,4-phenylene units and other comonomers comprising chargetransporting triphenylamine, carbazole, and 1,8-naphthalimide groups were synthesized by the Suzuki polycondensation under microwave irradiation. On heating the obtained copolymers to 180°C, their photoluminescence spectra remain stable. The best sample herein obtained provided the OLED brightness of 2830 cd m–2, current efficiency of 0.5 cd A–1 and CIE coordinates of x = 0.168 and y = 0.228.
Citation:
D. M. Ilgach, G. I. Nosova, T. N. Kopylova, E. N. Nikonova, R. M. Gadirov, R. Yu. Smyslov, L. S. Litvinova, A. V. Yakimanskii, “Polyfluorene copolymers containing 2,5-difluoro-1,4-phenylene chains and carbazole conjugates with 1,8-naphthalimides for stable blue OLEDs”, Mendeleev Commun., 27:4 (2017), 357–359
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This publication is cited in the following 6 articles:
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A. A. Yakimanskiy, A. M. Mitroshin, T. G. Chulkova, S. A. Miltsov, A. V. Yakimanskii, “Fluorene-based π-conjugated polymers for OLEDs: advances, opportunities, and challenges”, Mendeleev Commun., 34:5 (2024), 609–629
M. A. Simonova, D. M. Ilgach, K. I. Kaskevich, M. I. Nepomnyashaya, L. S. Litvinova, A. P. Filippov, A. V. Yakimansky, “Self-assembly of Polyfluorene Molecular Brushes with Poly(methacrylic acid) Side Chains in Ethanol and Water”, Polym. Sci. Ser. C, 64:2 (2022), 189
Maria Simonova, Dmitry Ilgach, Ksenia Kaskevich, Maria Nepomnyashaya, Larisa Litvinova, Alexander Filippov, Alexander Yakimansky, “Novel Amphiphilic Polyfluorene-Graft-(Polymethacrylic Acid) Brushes: Synthesis, Conformation, and Self-Assembly”, Polymers, 13:24 (2021), 4429
D. A. Lypenko, G. I. Nosova, I. A. Berezin, A. R. Tameev, E. I. Mal'tsev, “Role of benzothiadiazole substituents in white electroluminescent single macromolecules of fluorene-based copolymers”, Mendeleev Commun., 30:2 (2020), 165–167
E. M. Chistyakov, M. I. Buzin, S. M. Aksenov, A. S. Tupikov, V. V. Kireev, “Thermal polycondensation of hexakis(p-acetylphenoxy)-cyclotriphosphazene”, Mendeleev Commun., 29:1 (2019), 99–101