Macromolecular Research

The Polymer Society of Korea (한국고분자학회)
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Synthesis and Characterization of New Blue Light Emitting Alternating Terphenylenevinylene Carbazylenevinylene Copolymer

  • Kim Yun-Hi (Department of Polymer Science & Engineering and Engineering Research Institute, Gyeongsang National University) ;
  • Park Jung-Cheol (Department of Polymer Science & Engineering and Engineering Research Institute, Gyeongsang National University) ;
  • Kang Hun-Jin (Department of Polymer Science & Engineering and Engineering Research Institute, Gyeongsang National University) ;
  • Park Jong-Won (Department of Polymer Science & Engineering and Engineering Research Institute, Gyeongsang National University) ;
  • Kim Hyung-Sun (Department of Polymer Science & Engineering and Engineering Research Institute, Gyeongsang National University) ;
  • Kim Jin-Hak (Department of Polymer Science & Engineering and Engineering Research Institute, Gyeongsang National University) ;
  • Kwon Soon-Ki (Department of Polymer Science & Engineering and Engineering Research Institute, Gyeongsang National University)
  • Published : 2005.10.01
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Abstract

A new terphenylenevinylene carbazylenevinylene alternating copolymer with the advantage of poly(p-phenylenevinylene) (PPV), poly(p-phenylene )(PPP) and poly(carbazole) was designed, synthesized and characterized. The polymer structure was confirmed by various spectroscopic analyses and the number average molecular weight ($M_n$) of the obtained polymer was 7,800. The resulting polymer was thermally stable with high glass transition temperature ($T_g$) ($150^{\circ}C$), and was readily soluble in common organic solvents. Cyclic voltammetry study revealed that the HOMO and LUMO energy levels of the polymer were 5.37 and 2.47 eV, respectively. The ITO/PEDOT/polymer/AI device fabricated from the polymer emitted bright sky blue light with a maximum peak of around 478 nm. The device showed the maximum brightness of 1,200 nW with a turn-on voltage of 7V.

Keywords

References

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