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

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
권호 표지

Electroluminescence Properties of New Spiro(fluorene-benzofluore)-Type Blue Host Materials

새로운 Spiro[fluorene-benzofluore]계 청색 호스트 물질의 유기전계발광 특성

  • Jeon, Young-Min (Department of Chemistry and Institute of Basic Science, Dankook University) ;
  • Lee, Hyun-Seok (Department of Chemistry and Institute of Basic Science, Dankook University) ;
  • Lee, Chil-Won (OLED team, Daejooelectronic materials) ;
  • Kim, Jun-Woo (OLED team, Daejooelectronic materials) ;
  • Chang, Gi-Geun (Department of Electronic Engineering, Dankook University) ;
  • Gong, Myoung-Seon (Department of Chemistry and Institute of Basic Science, Dankook University)
  • Published : 2008.04.25
Download PDF
⟨ Previous Next ⟩

Abstract

New spiro-type host materials, 5'-phenylnaphthyl-spiro[fluorene-7,9'-benzofluorene](BH-lPN) and 5',6-bis(phenylnaphthyl)-spiro[fluorene-7,9'-benzofluorene](BH-6PN) were designed and successfully prepared by the Suzki reaction. The EL characteristics of BH-1PN as blue host material doped with blue dopant materials, BD-1 were evaluated and compared with the existing host MADN:dopant BD-1 system. The structure of the device is ITO/DNTPD/NPB/Host:5% dopant/Alq3/Al-LiF. The device obtained from BH-lPN doped with BD-1 showed a good color purity and efficiency, on the other hand luminance and current-density characteristics are worse than that of MADN doped with BD-1.

Keywords