Effect of Ce Co-Doping on CaGa_2S_4:Eu Phosphor : I. Energy Transfer from Ce to Eu Ions
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概要
- 論文の詳細を見る
The resonance-type energy transfer process has been investigated for the first time in Ce and Eu co-doped CaGa_2S_4 polycrystalline samples with different dopant concentrations in the range from 0.2 at.% to 4 at.%. The energy transfer from Ce to Eu ions increases with increasing Ce and Eu concentrations. The values of the rate determined from measured Ce emission decay time constants with different dopant concentrations showed a reasonable agreement with those obtained from intensity analyses of the Ce emission which takes into account the re-absorption effect by Eu ions. In addition, the observed change of the transfer rate with dopant concentration was discussed in terms of the distance between Ce and Eu ions. [DOI: 10.1143/JJAP.41.1424]
- 社団法人応用物理学会の論文
- 2002-03-15
著者
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NAJAFOV Hikmat
Department of Chemistry, Nagaoka University of Technology
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NAJAFOV Hikmat
Nagaoka University of Technology
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KATO Ariyuki
Nagaoka University of Technology
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IIDA Seishi
Nagaoka University of Technology
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Iida S
Nagaoka Univ. Technol. Nagaoka Jpn
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Toyota H
Nagaoka Univ. Technol. Nagaoka Jpn
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Iida S
Toyama Univ. Toyama Jpn
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Iida Shinya
Speedfam Co. Ltd.
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Iida Seishi
Nagaoka Univerity Of Technology Kamitomioka
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TOYOTA Hideyuki
Nagaoka University of Technology
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IWAI Kazutoshi
Nagaoka University of Technology
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BAYRAMOV Ayaz
Nagaoka University of Technology
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