Organic Light-Emitting Diodes with a Nanostructured Fullerene Layer at the Interface between Alq3 and TPD Layers
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概要
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Organic light-emitting diodes (OLEDs) with a nanostructured fullerene (C60) layer at and near the interface between the electron- and hole-transport layers were fabricated using a vacuum evaporation method. The OLEDs had a fundamental structure of indium-tin-oxide (ITO) anode/copper phtalocyanine (CuPc)/N,N’-dephenyl-N,N’-bis(3-methylphenyl)-1,1’-diphenyl-4,4’-diamine (TPD)/8-hydroxyquinoline aluminum (Alq3)/LiF/Al cathode. The electroluminescent (EL) properties have been investigated for the OLEDs with a nanostructured C60 layer at the TPD/Alq3 interface and at the different positions in the Alq3 layer near the TPD/Alq3 interface. The dependences of the EL properties on the thickness of the inserted C60 layer and on the position from the interface were examined. The OLEDs with a C60 monolayer inserted at the TPD/Alq3 interface showed the highest efficiency.
- 2003-04-15
著者
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Kobayashi Satoshi
Department of Aging Medicine and Geriatrics, Shinshu University, Graduate School of Medicine
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TADOKORO Toyoyasu
R & D Center, Nippon Seiki Co., Ltd.
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OHTA Shinichi
Engineering & Development Department, Nippon Seiki Co., Ltd.
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Tsuboi Nozomu
Department Of Electrical Engineering Nagaoka University Of Technology:(present Address)department Of
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Suzuki Keisuke
Department Of Chemistry Keio University
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Kato Keizo
Department of Electrical and Electronic Engineering, Niigata University, Ikarashi 2-8050, Niigata 950-2181, Japan
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Kato Keizo
Department of Electrical and Electronic Eng., Niigata University, Ikarashi 2-8050, Niigata 950-2181, Japan
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Kaneko Futao
Department of Electrical and Electronic Eng., Niigata University, Ikarashi 2-8050, Niigata 950-2181, Japan
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Shinbo Kazunari
Department of Electrical and Electronic Engineering, Niigata University, Ikarashi 2-8050, Niigata 950-2181, Japan
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Shinbo Kazunari
Department of Electrical and Electronic Eng., Niigata University, Ikarashi 2-8050, Niigata 950-2181, Japan
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Ohta Shinichi
Engineering & Development Department, Nippon Seiki Co., Ltd., 2-2-34 Higashi-Zaoh, Nagaoka 940-8580, Japan
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Tsuboi Nozomu
Department of Material Science and Technology, Niigata University, Ikarashi 2-8050, Niigata 950-2181, Japan
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Tadokoro Toyoyasu
R & D Center, Nippon Seiki Co., Ltd., 1-190-1 Fujihashi, Nagaoka 940-2141, Japan
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Suzuki Keisuke
Department of Applied Chemistry and Biotechnology, Faculty of Engineering, Yamanashi University
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