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Alternating copolymers of N-(2-ethylhexyl)-carbazole derivatives with aniline units: Synthesis and properties

Title
Alternating copolymers of N-(2-ethylhexyl)-carbazole derivatives with aniline units: Synthesis and properties
Authors
Wang, H[Wang, Hui]Ryu, JT[Ryu, Jeong-Tak]Han, YS[Han, Yoon Soo]Kim, DH[Kim, Dae-Hwan]Choi, BD[Choi, Byeong Dae]Park, LS[Park, Lee Soon]Kwon, Y[Kwon, Younghwan]
DGIST Authors
Han, YS[Han, Yoon Soo]; Kim, DH[Kim, Dae-Hwan]Choi, BD[Choi, Byeong Dae]
Issue Date
2006
Citation
Molecular Crystals and Liquid Crystals, 459, 85-94
Type
Article
Article Type
Article
Keywords
Alternating CopolymerCarbazoleCopolymersDerivativesEnergy GapNitrogen CompoundsPalladium-Catalyzed PolycondensationPhotoluminescenceReaction LinkageSynthesis (Chemical)Triaryl Amine
ISSN
1542-1406
Abstract
Alternating copolymers such as P(3,6-EHCZ-alt-Al), P(Bis-EHCZ-alt-Al) and P(2,7-EHCZ-alt-Al), based on blue-emitting carbazole and hole-transporting triarylamine units in the polymer backbone, were successfully synthesized by using palladium-catalyzed polycondensation reaction. P(Bis-EHCZ-alt-Al) exhibited blue shift both in UV-Vis absorption and PL emission, while P(2,7-EHCZ-alt-Al) showed red shift in UV-Vis absorption and blue shift in PL emission, compared to P(3,6-EHCZ-alt-Al). It was observed from the optical and electrochemical characterization that band gap energy (2.91∼3.07 eV) and HOMO (-5.25∼5.11 eV) levels of the copolymers could be fine-tuned by the carbazole content in the repeating unit and different reaction linkage on the carbazole ring.
URI
http://hdl.handle.net/20.500.11750/3607
DOI
10.1080/15421400600932272
Publisher
Taylor and Francis Ltd.
Related Researcher
Files:
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Collection:
Convergence Research Center for Solar Energy1. Journal Articles
Intelligent Devices and Systems Research Group1. Journal Articles


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