High-Efficiency Carrier Injection Characteristics of Dixanthene Derivatives in Organic Light-Emitting Diodes
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概要
- 論文の詳細を見る
We demonstrate that benzo[1,2,3-kl:4,5,6-k$'$l$'$]dixanthene (BDX) derivatives show high-efficiency carrier injection in organic light-emitting diodes (OLEDs). Using 3,11-dibromobenzo[1,2,3-kl:4,5,6-k$'$l$'$]dixanthene (BDX6) as a hole injection layer (HIL), we achieved a low driving voltage of $8.12\pm 0.10$ V in obtaining a current density of $J=100$ mA/cm2. The hole injection characteristics were superior to those of a device with a conventional CuPc layer as a HIL. On the other hand, inserting benzo[1,2,3-kl:4,5,6-k$'$l$'$]dixanthene (BDX1) as an electron injection layer (EIL) efficiently decreased driving voltage, indicating a superior electron injection capability compared with a device without a BDX1 EIL. We show that carrier injection efficiency can be well controlled by the substituent groups of BDX, thus providing efficient hole and electron injection layers.
- INSTITUTE OF PURE AND APPLIED PHYSICSの論文
- 2005-01-15
著者
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Adachi Chihaya
Department Of Photonics Materials Science Chitose Institute Of Science And Technology (cist)
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SASABE Hiroyuki
Department of Photonics Materials Science, Chitose Institute of Science and Technology (CIST)
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YOSHIDA Masafumi
Department of Pediatric Dentistry, Nihon University, School of Dentistry
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Adachi Chihaya
Department Of Functional Polymer Science Faculty Of Textile Science And Technology Shinshu Universit
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Sasabe Hiroyuki
Department Of Drug Metabolism Tokushima Research Institute Otsuka Pharmaceutical Co. Ltd.
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Sasabe Hiroyuki
Department Of Photonics Materials Science Chitose Institute Of Science And Technology (cist)
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Tsuchida Teppei
Functional Chemicals Research Laboratories, Nippon Kayaku Co., 3-26-8 Shimo, Kita, Tokyo 115-0042, J
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Kurata Takaaki
Functional Chemicals Research Laboratories, Nippon Kayaku Co., 3-26-8 Shimo, Kita, Tokyo 115-0042, J
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Ikeda Masaaki
Functional Chemicals Research Laboratories, Nippon Kayaku Co., 3-26-8 Shimo, Kita, Tokyo 115-0042, J
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Kurata Takaaki
Functional Chemicals Research Laboratories Nippon Kayaku Co.
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Yoshida Masafumi
Department Of Pediatric Dentistry Nihon University School Of Dentistry
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Ikeda Masaaki
Functional Chemicals Research Laboratories Nippon Kayaku Co.
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Tsuchida Teppei
Functional Chemicals Research Laboratories Nippon Kayaku Co.
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Yoshida Masafumi
Department Of Chemistry Faculty Of General Education Kumamoto University
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Yoshida Masafumi
Department Of Photonics Materials Science Chitose Institute Of Science And Technology (cist)
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