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题名: Preparation and Luminescence Properties of Polymers Containing Dialkoxyacenes
作者: Tsai, M.-L
Liu, C.-Y
Wang, Y.-Y
Chen, J.-Y
Chou, T.C
Lin, H.M
Tsai, S.H
Chow, T.J
贡献者: 國立臺灣海洋大學:生命科學暨生物科技學系
日期: 2004-07
上传时间: 2018-10-08T03:03:53Z
出版者: Chem. Mat
摘要: Abstract: Derivatives of 2,3-(1,4-dialkoxyaceno)norbornadiene 1−4 underwent ring-opening metathesis polymerization (ROMP) reactions with a ruthenium carbene complex Cl2(PCy3)2RuCHPh to afford the corresponding polymers P1−P4 with narrow polydispersity. These materials exhibited luminescence both in solution and as films, whereas P3 and P4 were used successfully for the fabrication of light emitting diodes (LED). The device ITO/P4/Ca/Al, made of a spin-coated layer of P3 or P4, displayed white light that can be turned on at 7 V with a maximum intensity of 427 cd/m2 at 15 V. The white electroluminescence is composed of a blue emission band from the aromatic chromophore and a red component derived from solid aggregates. The performance of devices can be improved by insertion of an additional electron-transporting layer, i.e., 1,3,5-tris(2‘-(1‘-phenyl-1‘-H-benzimidazole)benzene (TPBI). The device ITO/P4/TPBI/Mg:Ag displayed blue light with a turn-on voltage of 5 V and maximal intensity of 930 cd/m2 at 15 V. The change of chromaticity can be ascribed to a shift of charge recombination sites in the bulk of P4 film. The phenomenon was verified by adjusting the thickness of TPBI layer, whereas a continuous variation in color was observed upon changing bias.
關聯: 16(17) pp.3373–3380
显示于类别:[生命科學暨生物科技學系] 期刊論文


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