한국정보디스플레이학회:학술대회논문집
- 2009.10a
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- Pages.771-774
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- 2009
Improved stability of organic light-emitting diodes with lithium-quinolate doped electron transport layer
- Choi, Sung-Hoon (OLED Technology Development Team 3, LG Display) ;
- Kim, Sang-Dae (OLED Technology Development Team 3, LG Display) ;
- Han, Kyu-Il (OLED Technology Development Team 3, LG Display) ;
- Lee, Se-Hee (OLED Technology Development Team 3, LG Display) ;
- Park, Eun-Jung (OLED Technology Development Team 3, LG Display) ;
- Kum, Tae-Il (OLED Technology Development Team 3, LG Display) ;
- Jung, Young-Kwan (OLED Technology Development Team 3, LG Display) ;
- Lee, Seok-Jong (OLED Technology Development Team 3, LG Display) ;
- Lee, Nam-Yang (OLED Technology Development Team 3, LG Display)
- Published : 2009.10.12
Abstract
The Improved stability of organic light emitting diodes (OLEDs) containing lithium-quinolate (Liq) as the ETL doping material is investigated. The lifetime could be improved by threefold using the Liq-doped ETL structure. The improvement was attributed to the Liq-doped ETL, which improved hole-electron balance and has a good electrical stability. Additionally, when the Liq doped device was combined with an Mg/Al cathode, the OLED produced a longer lifetime than other device.