Luminance Properties of Organic Light Emitting Diodes Using Zn-Complexes

Zn-Complexes를 이용한 OLEDs의 발광 특성 연구

  • Jang, Yoon-Ki (Department of Electrical Engineering& Port Logistics Systems, Dong-A University) ;
  • Kim, Doo-Seok (Department of Electrical Engineering& Port Logistics Systems, Dong-A University) ;
  • Kim, Byoung-Sang (Department of Electrical Engineering& Port Logistics Systems, Dong-A University) ;
  • Kwon, Oh-Kwan (Department of Electrical Engineering& Port Logistics Systems, Dong-A University) ;
  • Lee, Burm-Jong (Department of Chemistry, Inje University) ;
  • Kwon, Young-Soo (Department of Electrical Engineering& Port Logistics Systems, Dong-A University)
  • 장윤기 (동아대학교 전기공학과 & 동아대학교 항만물류시스템학과) ;
  • 김두석 (동아대학교 전기공학과 & 동아대학교 항만물류시스템학과) ;
  • 김병상 (동아대학교 전기공학과 & 동아대학교 항만물류시스템학과) ;
  • 권오관 (동아대학교 전기공학과 & 동아대학교 항만물류시스템학과) ;
  • 이범종 (인제대학교 화학과) ;
  • 권영수 (동아대학교 전기공학과 & 동아대학교 항만물류시스템학과)
  • Published : 2005.07.18

Abstract

Recently, high luminance and high efficiency were realized in OLEDs with multilayer structure including emitting materials such as metal-chelate complexes. New luminescent materials, [2- (2-hydroxyphenyl)-quinoline] (Zn(HPB)q), [(1,10-phenanthroline)- (8-hydroxyquinoline)] Zn(Phen)q was synthesized. Zn-Complexes have low molecular compound and thermal stability. The ionization potential(IP) and electron affinity(EA) of Zn-complexes were measured by cyclic-voltammetry(CV). The fundamental structure of the OLEDs was $ITO/{\alpha}$-NPD/Zn-Complex/Al and then we made device structure rightly in energy band gap. We using Zn(Phen)q as emitting layer and Zn(HPB)q as electron transport layer. We measured current density-voltage, luminance-voltage characteristics.

Keywords