한국정보디스플레이학회:학술대회논문집

The Korean Infomation Display Society (한국정보디스플레이학회)
권호 표지

Synthesis of Phenanthridine-Containing Conjugated Copolymer and OLED Device Properties

  • Park, Lee-Soon (Dept of Polymer Science, Kyungpook National University) ;
  • Jeong, Young-Chul (Dept of Polymer Science, Kyungpook National University) ;
  • Han, Yoon-Soo (Advanced Display Manufacturing Research Center Kyungpook National University) ;
  • Kim, Sang-Dae (LG Electronics Inc.) ;
  • Kwon, Young-Hwan (Dept of Chemical Engineering, Research Institute of Nano Technologies Daegu University)
  • Published : 2004.08.23
Download PDF
⟨ Previous Next ⟩

Abstract

Polyazomethine type conjugated copolymers containing phenanthridine units, poly(PZ-PTI), were synthesized by Schiff-base reaction. This new conjugated copolymer exhibited improved solubility in common organic solvents due to the presence of alkyl side chains as well as phenanthridine groups. Double layer (ITO/poly(PZ-PTI)/$Alq_3$/Mg) light emitting diode (LED) exhibited enhanced EL emission and efficiency compared to that of single layer (ITO/poly(PZ-PTI)/Mg) LED. With increasing the thickness of $Alq_3$ layer in double layer (ITO/poly(PZ-PTI)/$Alq_3$/Mg) LED the emission peak gradually shifted to the single layer (ITO/$Alq_3$/Mg) LED, confirming good hole transporting behaviour of the synthesized conjugated copolymer.

Keywords