Photoluminescence Dynamics of Mn^<2+>-Doped CdS/ZnS Core/Shell Nanocrystals : Mn^<2+> Concentration Dependence(Condensed matter : electronics structure and electrical, magnetic, and optical properties)
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概要
- 論文の詳細を見る
The controlled doping of impurities into semiconductor nanocrystals is essential for producing and enhancing optical and magnetic functionalities. We fabricated Mn^<2+>-doped CdS nanocrystals overcoated with a ZnS shell layer (CdS : Mn/ZnS core/shell nanocrystals) and studied photoluminescence (PL) properties of CdS : Mn/ZnS core/shell nanocrystals with different Mn^<2+> concentrations. The intensity and decay profile of the Mn^<2+> intra-3d transition PL are determined by the Mn^<2+> concentration. Our findings suggest that the Mn^<2+> concentration dependence of the PL dynamics is caused by exchange-coupled Mn pairs in nanocrystals.
- 社団法人日本物理学会の論文
- 2008-05-15
著者
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Kanemitsu Yoshihiko
Institute Of Physics University Of Tsukuba
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Yamamoto Aishi
Graduate School Of Materials Science Nara Institute Of Science And Technology
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Kanemitsu Yoshihiko
Institute For Chemical Research Kyoto University
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ISHIZUMI Atsushi
Graduate School of Materials Science, Nara Institute of Science and Technology
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JOJIMA Emiko
Graduate School of Materials Science, Nara Institute of Science and Technology
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Ishizumi Atsushi
Graduate School Of Materials Science Nara Institute Of Science And Technology
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Jojima Emiko
Graduate School Of Materials Science Nara Institute Of Science And Technology
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YAMAMOTO Aishi
Graduate School of Materials Science, Nara Institute of Science and Technology
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