Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference (한국전기전자재료학회:학술대회논문집)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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Synthesis and Properties of Blue Emitting Polymers Containing Carbazole Groups

  • Kwon, Young-Hwan (College of Information and Communication Engineering, Daegu University) ;
  • Wang, Hui (College of Information and Communication Engineering, Daegu University) ;
  • Kim, Yeon-Bo (College of Information and Communication Engineering, Daegu University) ;
  • Ryu, Jeong-Tak (College of Information and Communication Engineering, Daegu University) ;
  • Chang, Seung-Hyun (Department of Chemistry, Department of Chemical Engineering Daegu University)
  • Published : 2005.07.07
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Abstract

Blue-emitting polymers containing carbazole units In main chains were synthesized by palladium catalyzed polycondensation of aniline with dibromo-substituted monomers such as 3,6-dibromocarbazole, N-(2-ethylhexyl)-3,6-dibromocarbazole, and bis[6-bromo-N-(2-ethylhexyl)-carbazole-3-yl], respectively. All synthesized polymers exhibited relatively good solubility in common organic solvents, considerable molecular weights and high resistance to thermal degradation. From UV-Vis absorption and photoluminescence (PL) spectra of these solution-processable polymers, $\lambda_{max,UV}$ were in the range of 290 ~ 340 nm and $\lambda_{max,PL}$ were in the blue emission range of 440 ~ 478 nm, The polymers had HOMO energy (-5.19 ~ -5.64 eV) and wide band gap energy (2,91 - 3.42 eV).

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