한국정보디스플레이학회:학술대회논문집
- 2009.10a
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- Pages.192-195
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- 2009
Stable efficiency roll-off in blue phosphorescent organic light-emitting diodes using a mixed host structure
- Lee, Jong-Hee (Convergence Components & Materials Research Laboratory, Electronics and Telecommunications Research Institute) ;
- Lee, Jeong-Ik (Convergence Components & Materials Research Laboratory, Electronics and Telecommunications Research Institute) ;
- Lee, Jun-Yeob (Department of Polymer Science and Engineering, Dankook University) ;
- Chu, Hye-Yong (Convergence Components & Materials Research Laboratory, Electronics and Telecommunications Research Institute)
- Published : 2009.10.12
Abstract
We developed highly efficient blue PHOLEDs with reduced roll-off by using a mixed host structure. The balanced charge carrier injection and the distributed recombination zone within emissive layer resulted in a highly stable efficiency roll-off with quantum efficiencies of 20.1 and 18.1 % at a luminance of 1000 and 10000 cd/
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