한국정보디스플레이학회:학술대회논문집

The Korean Infomation Display Society (한국정보디스플레이학회)
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New polymeric host material for efficient organic electro phosphorescent devices

  • Jung, Choong-Hwa (Department of Applied Chemistry, Kumoh National Institute of Technology) ;
  • Park, Moo-Jin (Polymer Science and Engineering Program, KAIST) ;
  • Eom, Jae-Hoon (Department of Applied Chemistry, Kumoh National Institute of Technology) ;
  • Shim, Hong-Ku (Department Of Chemistry and School of Molecular Science(BK21), KAIST) ;
  • Lee, Seong-Taek (TD 1 team, Corporate R&D Center, Samsung SDI) ;
  • Yang, Nam-Choul (TD 1 team, Corporate R&D Center, Samsung SDI) ;
  • Liand, Duan (TD 1 team, Corporate R&D Center, Samsung SDI) ;
  • Suh, Min-Chul (TD 1 team, Corporate R&D Center, Samsung SDI) ;
  • Chin, Byung-Doo (Optoelectronic Materials Research Center, Korea Institute of Science and Technology) ;
  • Hwang, Do-Hoon (Department of Applied Chemistry, Kumoh National Institute of Technology)
  • Published : 2009.10.12
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Abstract

A polymeric host for triplet emitters composed of N-alkylcarbazole and tetramethylbenzene units was successfully synthesized. Efficient energy transfer was observed between this polymeric host and green phosphorescent dyes. The device fabricated using 5 wt% green 1 in the polymeric host as the emitting layer showed the best performance. Thin films of this host-guest system, exhibiting clear stripe patterns could be prepared through the LITI process. The patterned films were then used to fabricate electrophosphorescent devices, which show performance characteristics similar to those of spin-coated devices. The new host material is a good candidate to be used in polymer-based full-color electrophosphorescent light-emitting displays.

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