A Solid-State Multicolor Light-Emitting Device Based on Ballistic Electron Excitation
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概要
- 論文の詳細を見る
It is demonstrated that a solid-state luminescent device based on ballistic electron excitation can be fabricated using blue- or red-light-emitting materials as a fluorescent film. This device is composed of an n-type Si substrate, a nanocrystalline porous polysilicon (nc-PPS) layer, an organic fluorescent film, and a semitransparent thin Au film. When a positive bias voltage higher than approximately 10 V is applied to the Au top contact, the device uniformly emits blue or red light. The light intensity sharply increases with increasing bias voltage. The measured luminescence band almost coincides with the original photoluminescence spectrum of the deposited fluorescent material. The results indicate that light emission is due to the luminescence excited by ballistic electrons generated in the nc-PPS layer under a high electric field. This device is useful for applications to multicolor ballistic lighting.
- 2004-04-15
著者
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KOJIMA Akira
Quantum 14 Co.
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TOYAMA Hajime
Department of Electrical and Electronic Engineering, Faculty of Technology, Tokyo University of Agri
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GELLOZ Bernard
Department of Electrical and Electronic Engineering, Faculty of Technology, Tokyo University of Agri
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Nakajima Yoshiki
Department Of Anesthesiology And Intensive Care Hamamatsu University School Of Medicine
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Koshida Nobuyoshi
Department Of Electrical And Electronic Engineering Faculty Of Technology Graduate School Of Eng. To
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Kojima Akira
Quantum 14 Co. Ltd., 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan
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Uchida Tetsuya
Department of Electrical and Electronic Engineering, Faculty of Technology, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan
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Nakajima Yoshiki
Department of Electrical and Electronic Engineering, Faculty of Technology, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan
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Gelloz Bernard
Department of Electrical and Electronic Engineering, Faculty of Technology, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan
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Gelloz Bernard
Department of Applied Physics, Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan
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Toyama Hajime
Department of Electrical and Electronic Engineering, Faculty of Technology, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan
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Uchida Tetsuya
Department of Ecological Engineering, Toyohashi University of Technology
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