Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Copolyfluorenes containing carbazole or triphenylamine and Diethoxylphosphoryl groups in the side chains as white-light-emitting polymers. / Nosova, Galina I.; Lypenko, Dmitry A.; Smyslov, Ruslan Yu; Zhukova, Elena V.; Berezin, Ivan A.; Litvinova, Larisa S.; Maltsev, Eugene I.; Yakimansky, Alexander V.
в: Polymer, Том 210, 122978, 01.12.2020.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Copolyfluorenes containing carbazole or triphenylamine and Diethoxylphosphoryl groups in the side chains as white-light-emitting polymers
AU - Nosova, Galina I.
AU - Lypenko, Dmitry A.
AU - Smyslov, Ruslan Yu
AU - Zhukova, Elena V.
AU - Berezin, Ivan A.
AU - Litvinova, Larisa S.
AU - Maltsev, Eugene I.
AU - Yakimansky, Alexander V.
N1 - Publisher Copyright: © 2020 Elsevier Ltd Copyright: Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2020/12/1
Y1 - 2020/12/1
N2 - New copolyfluorenes containing 4,7-di-2-thienyl-2,1,3-benzothiadiazole and 2,1,3-benzothiadiazole or derivatives of naphthalimide as luminophores were synthesized under microwave heating. Charge-transporting carbazole, triphenylamine, or diphenyloxadiazole groups were introduced into the side chains of polymers through 9,9-bis-(4-phenoxy)-2,7-fluorene units. Copolyfluorenes were also modified via insertion of 10 mol% of 2,7-[9,9-bis-(6′-diethoxyphosphorylhexyl)]fluorene or dibenzothiophene-S,S-dioxide comonomer units into the polymer backbone. This study demonstrates the influence of chemical compositions, molecular masses of the polymers under investigation, and thermal treatment on microstructures of their films. Photo- and electroluminescent characteristics of the synthesized copolyfluorenes were determined. The best samples of devices manifested the luminance of 5110 cd m⁻2, the current efficiency of 1.33 cd A⁻1, and the CIE 1931 xy chromaticity coordinates of (0.339 0.364), or 7930 cd m⁻2, 2.18 cd A⁻1, and of (0.300 0.369) respectively. The effect of active layer thickness on the white emission color of polymer light-emitting diodes was revealed.
AB - New copolyfluorenes containing 4,7-di-2-thienyl-2,1,3-benzothiadiazole and 2,1,3-benzothiadiazole or derivatives of naphthalimide as luminophores were synthesized under microwave heating. Charge-transporting carbazole, triphenylamine, or diphenyloxadiazole groups were introduced into the side chains of polymers through 9,9-bis-(4-phenoxy)-2,7-fluorene units. Copolyfluorenes were also modified via insertion of 10 mol% of 2,7-[9,9-bis-(6′-diethoxyphosphorylhexyl)]fluorene or dibenzothiophene-S,S-dioxide comonomer units into the polymer backbone. This study demonstrates the influence of chemical compositions, molecular masses of the polymers under investigation, and thermal treatment on microstructures of their films. Photo- and electroluminescent characteristics of the synthesized copolyfluorenes were determined. The best samples of devices manifested the luminance of 5110 cd m⁻2, the current efficiency of 1.33 cd A⁻1, and the CIE 1931 xy chromaticity coordinates of (0.339 0.364), or 7930 cd m⁻2, 2.18 cd A⁻1, and of (0.300 0.369) respectively. The effect of active layer thickness on the white emission color of polymer light-emitting diodes was revealed.
KW - Copolyfluorenes
KW - Electroluminescent properties
KW - Microwave heating
KW - Photoluminescence
KW - Thermal annealing treatment
KW - HIGH-PERFORMANCE
KW - BLUE
KW - COPOLYMERS
KW - POLYFLUORENE
KW - BETA-PHASE
KW - INJECTION
KW - DIODES
KW - EMISSION
KW - LAYER
KW - EFFICIENCY
UR - http://www.scopus.com/inward/record.url?scp=85091248128&partnerID=8YFLogxK
U2 - 10.1016/j.polymer.2020.122978
DO - 10.1016/j.polymer.2020.122978
M3 - Article
AN - SCOPUS:85091248128
VL - 210
JO - Polymer
JF - Polymer
SN - 0032-3861
M1 - 122978
ER -
ID: 70764726