한국정보디스플레이학회:학술대회논문집

The Korean Infomation Display Society (한국정보디스플레이학회)
권호 표지

Efficient, Color Stable White Organic Light-Emitting Diode Based on High Energy Level Dopant

  • Park, Young-Seo (OLED Center, Department of Materials Science and Engineering, Seoul National University) ;
  • Kang, Dong-Min (School of Nano & Advanced Materials Engineering, Gyeongsang National University) ;
  • Park, Jong-Won (School of Nano & Advanced Materials Engineering, Gyeongsang National University) ;
  • Kwon, Soon-Ki (School of Nano & Advanced Materials Engineering, Gyeongsang National University) ;
  • Kang, Jae-Wook (Surface Technology Research Center, Korea Institute of Machinery and Materials(KIMM)) ;
  • Kim, Yun-Hi (Department of Chemistry, Gyeongsang National University) ;
  • Kim, Jang-Joo (OLED Center, Department of Materials Science and Engineering, Seoul National University)
  • Published : 2008.10.13
Download PDF
⟨ Previous Next ⟩

Abstract

Efficient, color stable multi-EML WOLED have been fabricated using newly synthesized yellowish green dopant Ir(chpy)3 or Ir(mchpy)3. The devices have high external quantum efficiency of 11.7%, color rendering index of 87, variation of CIE coordinate of (0.02, 0.01) between 10 to 5000 cd/m2, and low roll-off in efficiency with increasing brightness.

Keywords