Optical properties of Stibenequinone derivatives in PVK organic electroluminescence

PVK 유기 EL에서 Stibenequinone 유도체의 광학적 특성

  • 조종래 (부경대학교 전자공학과) ;
  • 유정이 (부경대학교 인쇄정보공학과) ;
  • 양종헌 (부경대학교 인쇄정보공학과) ;
  • 신상식 (부경대학교 인쇄정보공학과) ;
  • 손세모 (부경대학교 인쇄정보공학과) ;
  • 정수태 (부경대학교 전자공학과)
  • Published : 2003.07.10

Abstract

Stibenequinone(SQ) derivative which was electronic transportation materials in Poly(N-vinylcarbazole) (PVK)-based on organic EL and an optical characteristic of organic EL which is mentioned previously was investigated. The Photoluminescence highest pick with blending TBSQ with PVK was shifted from 439nm to 517nm. This result indicates that an energy gap of a PVK/TBSQ blended sample is less than an energy gap of PVK. According to the electrochemistry characteristic, the ionization energy(Ip) and the electro affinity(Ea) decreased from 5.79eV to 5.63eV and 2.23eV to 2.63eV, respectively.

Keywords