Europium-Doped Gallium Nitride Prepared by Na Flux Method
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概要
- 論文の詳細を見る
An aggregate of Eu-doped GaN columnar crystals was synthesized at 700°C and a N2 pressure of 5 MPa at the surface of a Na–Ga melt with the addition of Eu metal. The color of the crystals was black at the melt-phase side, and changed to brown to colorless and transparent toward the gas-phase side. Energy-dispersive X-ray analysis revealed that the Eu content was 0.15 at. % at the black part and decreased gradually below ${<} 0.1$ at. % at the colorless transparent part. The colorless transparent part glowed red under ultraviolet radiation. A strong emission peak associated with the intra-$4 f$ transition of Eu3+ from $^{5}D_{0}$ to $^{7}F_{2}$ was observed at 621 nm in the photoluminescence spectrum and at 624 nm in the cathodoluminescence spectrum.
- INSTITUTE OF PURE AND APPLIED PHYSICSの論文
- 2006-02-25
著者
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Yamada Takahiro
Institute Of Multidisciplinary Research For Advanced Materials Tohoku University
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Yamane Hisanori
Center For Advanced Nitride Technology (cantech) Institute Of Multidisciplinary Research For Advance
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Kohiro Kenji
Tsukuba Research Laboratory Sumitomo Chemical Co. Ltd.
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Nanbu Hiroshi
Center For Interdisciplinary Research Tohoku University
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TSUCHIDA Yoshihiko
Tsukuba Research Laboratory, Sumitomo Chemical Co., Ltd.
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Nanbu Hiroshi
Center for Interdisciplinary Research, Tohoku University, 6-3 Aramaki, Aoba-ku, Sendai 980-8578, Japan
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YAMADA Takahiro
Institute of Multidisciplinary for Advanced Materials, Tohoku University
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Tsuchida Yoshihiko
Tsukuba Research Laboratory, Sumitomo Chemical Co., Ltd., 6 Kitahara, Tsukuba, Ibaraki 300-3294, Japan
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