한국정보디스플레이학회:학술대회논문집

한국정보디스플레이학회 (The Korean Infomation Display Society)
권호 표지

Study of White Light Emission with Three or Two color in Multi Organic Emitting Layers with DCJTB, DPVBi and Coumarin6

  • Yoo, Seok-Jun (Information Display Research Center, Korea Electronics Technology Institute, Material Science and Engineering, Kyonggi University) ;
  • Lee, Chan-Jae (Information Display Research Center, Korea Electronics Technology Institute) ;
  • Kim, Dong-Won (Material Science and Engineering, Kyonggi University) ;
  • Han, Jeong-In (Information Display Research Center, Korea Electronics Technology Institute)
  • 발행 : 2007.08.27
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초록

Using a blue emitting DPVBi material and red dopant DCJTB, WOLEDs with and without green emitter C6 added in ETL or HTL have been fabricated. The chromaticity color index of WOLEDs without C6 depends strongly on the doping concentration. In addition, manipulating thickness of emitting layer is similar effect such as controlling weight concentration of dopant. While the white color of WOLEDs with C6 added in ETL or HTL depend on position of C6. WOLED of three colors added green dye have been shown turn-on voltage of 3.25V, and EL efficiency 3.05cd/A @9V, $8102\;cd/m^2$, CIE coordinates (0.30, 0.32).

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