Energy Barrier Reduction and Exciton Confinement Using an Intermediate Blocking Layer in Organic Light-Emitting Diodes
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概要
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The intermediate blocking layer (IBL) was investigated for the development of highly efficient and bright organic light-emitting diodes (OLEDs). The insertion of an IBL between a hole transport layer and an emitting layer (EML) has resulted in the development of highly efficient and bright OLEDs. The quantum efficiency and electrical durability at high voltage were highly dependent on the thickness of the IBL. The maximum external quantum efficiency of the devices with a 1.5-nm-thick IBL was increased by 28% compared with the reference. The enhanced performance of the OLEDs appears to be due to the improvement of carrier balance and exciton confinement.
- 2010-11-25
著者
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Lee Se
Department Of Dermatology Seoul National University College Of Medicine Laboratory Of Cutaneous Agin
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Song Kie
Department Of Applied Physics Konkuk University
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Baik Hong
Department Of Materials Engineering College Of Engineering Yonsei University
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Oh Jin
Department Of Internal Medicine Dongguk University Ilsan Hospital
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Lee Se
Department of Materials Science and Engineering, Kyungsung University, Busan 608-736, Korea
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Park Jin
OLED Manufacturing Team, Samsung Mobile Display Co., Ltd., Cheonan 330-300, Korea
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Hwang Hyeon
Department of Advanced Materials Engineering, Yonsei University, Seoul 120-749, Korea
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Jo Min
OLED Manufacturing Team, Samsung Mobile Display Co., Ltd., Cheonan 330-300, Korea
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Choi Sang
OLED Technology Strategy Team, LG Display Co., Ltd., Paju 413-811, Korea
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Oh Jin
Department of Advanced Materials Engineering, Yonsei University, Seoul 120-749, Korea
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Baik Hong
Department of Advanced Materials Engineering, Yonsei University, Seoul 120-749, Korea
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Lee Se
Department of Advanced Materials Engineering, Kyungsung University, 314-79 Daeyun-dong, Nam-gu, Busan 680-736, Korea
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Song Kie
Department of Applied Physics, Konkuk University, 322 Danwol-dong, Chungju-si, Chungcheongbuk-do 380-701, Korea
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