Shifting Donor-Acceptor Photoluminescence in N-doped ZnO(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
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概要
- 論文の詳細を見る
We have grown nitrogen-doped ZnO films by two kinds of epitaxial methods on lattice-matched ScAlMgO_4 substrates. We measured the photoluminescence (PL) of the two kinds of ZnO:N layers in the donor-acceptor-pair transition region. The analysis of the excitation-intensity dependence of the PL peak shift with a fluctuation model has proven that our observed growth-technique dependence can be explained in terms of the inhomogeneity of charged impurity distribution. It was found that the inhomogeneity in the sample prepared with the process that provides showing better electrical properties was significantly smaller in spite of the similar nitrogen concentration. The activation energy of acceptors has been evaluated to be≈170 me V, which is independent of the nitrogen concentration.
- 社団法人日本物理学会の論文
- 2006-07-15
著者
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OHTOMO Akira
Institute for Materials Research, Tohoku University
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Ohtomo Akira
Institute For Materials Research Tohoku University
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Ohtomo Akira
Department Of Industrial Chemistry University Of Tokyo
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Kawasaki M
Institute For Materials Research Tohoku University
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Kumagai M
Materials And Structures Laboratory Tokyo Institute Of Technology
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Kawasaki M
Institute For Materials Research (imr) Tohoku University
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Kawasaki Masashi
Institute For Materials Research (imr) Tohoku University
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Ohtomo Akira
Department Of Applied Chemistry Tokyo Institute Of Technology
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TSUKAZAKI Atsushi
Institute of Materials Research, Tohoku University
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KAWASAKI M.
Institute for Materials Research
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Koinuma H
National Institute For Materials Science (nims)
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KOINUMA Hideomi
Tokyo Institute of Technology
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Kawasaki Masashi
Department Of Applied Biological Science Tokyo Noko University
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Ohtomo Akira
Tokyo Inst. Technol. Tokyo Jpn
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Koinuma Hideomi
Department Of Applied Physics Graduate School Of Engineering Nagoya University
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Koinuma Hideomi
Crest Japan Science And Technology Corporation
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Koinuma Hideomi
Department Of Industrial Chemistry Faculty Of Engineering University Of Tokyo
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Koinuma Hideomi
Department Of Industrial Chemistry University Of Tokyo
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Kawasaki M
Joint Research Center For Atom Technology (jrcat) : Department Of Innovative And Engineered Material
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KOINUMA Hideomi
Graduate School of Frontier Sciences, The University of Tokyo
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MAKINO Takayuki
Department of Material Science, University of Hyogo
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Tsukazaki Atsushi
Institute For Materials Research (imr) Tohoku University
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Ohtomo Akira
Tohoku Univ. Sendai Jpn
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MAKINO Takayuki
Department of Material Science, University of Hyogo:RIKEN (Institute of Physical and Chemical Research)
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KOINUMA Hideomi
Graduate School of Frontier Science, The University of Tokyo
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TSUKAZAKI Atsushi
Institute for Materials Research, Tohoku University
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