한국정보디스플레이학회:학술대회논문집
- 2005.07b
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- Pages.1306-1309
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- 2005
Effect of the thickness of an emitting zone by the thin alkali compound films for highly efficient $Alq_3-based$ OLEDs
- Kim, Young-Min (Opto Electronic Materials Research Center, Korea Institute of Science and Technology, Department of Electrical Engineering, Korea University) ;
- Lee, Joo-Won (Opto Electronic Materials Research Center, Korea Institute of Science and Technology.) ;
- Park, Jung-Soo (Opto Electronic Materials Research Center, Korea Institute of Science and Technology.) ;
-
Kim, Jai-Kyeong
(Opto Electronic Materials Research Center, Korea Institute of Science and Technology.)
;
- Sung, Man-Young (Department of Electrical Engineering, Korea University) ;
-
Ju, Byeong-Kwon
(Department of Electrical Engineering, Korea University)
;
-
Jang, Jin
(Department of Physics, Kyung Hee University)
- Published : 2005.07.19
Abstract
Highly efficient and bright organic light-emitting diodes (OLEDs) have been realized using the thin alkali compound films (TACFs) at the interface between an emitting layer and an electron transporting layer with conventional organic layers. By comparing the performance of the device as a function of position with the TACFs, we propose the optimal position of the TACFs in the tris-(8-hydroxyquinoline) aluminum (Alq3). A device with the ACFs showed high luminance of over 12 500 cd/m2, luminance efficiency of more than 12 cd/A, and power efficiency of more 4.5 lm/W, respectively.
Keywords