Enhanced Red-Light Emission by Local Plasmon Coupling of Au Nanorods in an Organic Light-Emitting Diode

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概要

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• A significant increase in the quantum efficiency of an organic red-light-emitting diode was achieved through coupling with localized surface plasmons of Au nanorods with a length of 50--60 nm embedded on the substrate anode. We used 4-(dicyanomethylene)-2-methyl-6-(4-dimethylaminostyryl)-4H-pyran (DCM)-doped tris(8-hydroxylquinolianato)aluminum(III) (Alq3) as an emission layer. The fabricated diode structure consists of an indium tin oxide (ITO) anode, a Cu phthalocyanine (CuPc) hole transport layer, an Alq3 electron transport layer, a LiF electron injection layer, and an Al cathode. We observed a 3-fold increase in the intensity of molecular fluorescence compared with that of a conventional diode structure.

• 2011-03-25

著者

• Ogawa Takuji

  Department Of Chemistry Faculty Of Science Ehime University

• Miyake Yusuke

  Department Of Chemistry Graduate School Of Science And Engineering Tokyo Institute Of Technology

• Tanaka Takuya

  Department Of Chemical Science And Engineering Graduate School Of Engineering Kobe University

• Akai-Kasaya Megumi

  Department of Material and Life Science, Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka 565-0871, Japan

• Akai-Kasaya Megumi

  Department of Precision Science & Technology, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan

• Kuwahara Yuji

  Department of Advanced Science and Biotechnology, Osaka University, Suita, Osaka 565-0871, Japan

• Kuwahara Yuji

  Department of Precision Science & Technology, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan

• Zettsu Nobuyuki

  Research Center for Ultra-precision Science and Technology, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan

• Zettsu Nobuyuki

  Research Center for Ultra-Precision Science and Technology, Osaka University, Suita, Osaka 565-0871, Japan

• Saito Akira

  Department of Biological Chemistry, Yamaguchi University

• Ogawa Takuji

  Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan

• Totoki Yuji

  Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan

• Fujiki Aya

  Department of Precision Science & Technology, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan

• Fujiki Aya

  Department of Precision Science & Technology, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan

• Saito Akira

  Department of Applied and Bioapplied Chemistry, Graduate School of Engineering, Osaka City University

• Akai-Kasaya Megumi

  Department of Material and Life Science, Faculty of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka 565-0871, Japan

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