Effect of post-annealing on structural and optical properties, and elemental distribution in heavy Eu-implanted ZnO thin films
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概要
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The effect of post-annealing on ZnO thin films implanted with Eu at 1 × 1017 ions/cm2 was studied to characterize the structural and luminescent properties, and the distribution of Eu in thin films. After post-annealing at 600°C, the broadening of the ZnO(002) diffraction peak was the same as that of the as-implanted sample. The sample showed orange luminescence due to Eu3+. After post-annealing at 900°C, a sharp diffraction peak of ZnO(002) was observed. The orange luminescence due to Eu3+ had disappeared, and instead, the intense luminescence of the band-edge of ZnO was observed in the sample. Ion images of Zn and Eu indicated that the Eu separated from the ZnO during the post-annealing. It is thought that the difference in luminescence is due to the separation of Eu from ZnO.
著者
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Ohdaira Toshiyuki
National Institute Of Advanced Industrial Science And Technology
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SAKAGUCHI Isao
National Institute for Materials Science
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HANEDA Hajime
Sensor Materials Center, National Institute for Materials Science
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Ohgaki Takeshi
Sensor Materials Center National Institute For Materials Science
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Ohshima Takeshi
Japan Atomic Energy Research Institute (jaeri)
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Ohdaira Toshiyuki
National Institute Of Advanced Industrial Science And Technology (aist)
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Haneda Hajime
Sensor Materials Center National Institute For Materials Science
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Adachi Yutaka
National Inst. For Materials Sci.
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Sakaguchi I
Optical Materials Center National Inst. For Materials Sci.
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SAKAGUCHI Isao
Optronic Materials Center, National Institute for Materials Science
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ADACHI Yutaka
Optronic Materials Center, National Institute for Materials Science
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HISHITA Shunichi
Sensor Materials Center, National Institute for Materials Science
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OHASHI Naoki
Optronic Materials Center, National Institute for Materials Science
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Hishita Shunichi
Sensor Materials Center National Inst. For Materials Sci.
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Ohgaki Takeshi
National Inst. For Materials Sci.
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Ohshima T
Japan Atomic Energy Res. Inst. Takasaki Jpn
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Ohgaki Takeshi
Sensor Materials Center National Inst. For Materials Sci.
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Ohgaki T
National Institute For Materials Science (nims)
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