Fabrication of Organic Light-Emitting Devices with Indium–Tin-Oxide Anode Prepared by Spray Chemical Vapor Deposition
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概要
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Organic light-emitting devices (OLEDs) were fabricated using an indium–tin-oxide (ITO) anode and a small molecular light-emitting material, tris(8-hydroxyquinolinato) aluminum (Alq3). The ITO anode (thickness, 120 nm) was prepared inexpensively by spray chemical vapor deposition using ethanol solution consisting of indium chloride and tin chloride onto a glass substrate at 270 °C, which is 80 °C lower than the temperature previously reported by the present authors. The work function and lowest resistivity of the as-deposited anode containing 6.6 at. % Sn were respectively 4.7 V and $3.7\times 10^{-4}$ $\Omega$$\cdot$cm. The luminance and turn-on threshold voltage of the OLED were respectively 6500 cd/m2 and 3.5 V. These values agreed with those of an OLED with the same layer structure but without the commercial ITO anode deposited by physical vapor deposition. The effects of tin concentration in the present ITO anode on the work function and device performance were also investigated.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2007-10-15
著者
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SEKI Shigeyuki
Department of Industrial Chemistry, Graduate School of Engineering, Tokyo Institute of Polytechnics
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Haga Koichi
Department of Electronic Engineering, Sendai National College of Technology, 4-16-1 Ayashichuo, Aoba-ku, Sendai 989-3128, Japan
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Wakana Makoto
Department of Image Engineering, Graduate School of Engineering, Tokyo Polytechnic University, 1583 Iiyama, Atsugi, Kanagawa 243-0297, Japan
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Sawada Yutaka
Center for Hyper Media Research, Graduate School of Engineering, Tokyo Polytechnic University, 1583 Iiyama, Atsugi, Kanagawa 243-0297, Japan
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Uchida Takayuki
Center for Hyper Media Research, Graduate School of Engineering, Tokyo Polytechnic University, 1583 Iiyama, Atsugi, Kanagawa 243-0297, Japan
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Kasahara Yoshihiro
Department of Image Engineering, Graduate School of Engineering, Tokyo Polytechnic University, 1583 Iiyama, Atsugi, Kanagawa 243-0297, Japan
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Seki Yoshiyuki
Department of Industrial Chemistry, Graduate School of Engineering, Tokyo Polytechnic University, 1583 Iiyama, Atsugi, Kanagawa 243-0297, Japan
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Kondo Takeshi
Center for Hyper Media Research, Graduate School of Engineering, Tokyo Polytechnic University, 1583 Iiyama, Atsugi, Kanagawa 243-0297, Japan
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Wang Meihan
Center for Hyper Media Research, Graduate School of Engineering, Tokyo Polytechnic University, 1583 Iiyama, Atsugi, Kanagawa 243-0297, Japan
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Seki Shigeyuki
Department of Electronic Engineering, Sendai National College of Technology, 4-16-1 Ayashichuo, Aoba-ku, Sendai 989-3128, Japan
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SEKI Yoshiyuki
Department of Industrial Chemistry, Graduate School of Engineering, Tokyo Polytechnic University
関連論文
- Indium-Tin-Oxide Thin Films Prepared by Dip Coating; Dependence of Resistivity on Film Thickness and Annealing Atmosphere : Surfaces, Interfaces, and Films
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- Electron-Bombardment-Induced Damage to Organic Light Emission Layer
- Fabrication of Organic Light-Emitting Devices with Indium–Tin-Oxide Anode Prepared by Spray Chemical Vapor Deposition
- Smart Windows, Switchable between Transparent, Mirror, and Black States, Fabricated Using Rough and Smooth Indium Tin Oxide Films Deposited by Spray Chemical Vapor Deposition