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Thermoluminescence mechanism of dysprosium-doped beta-tricalcium phosphate phosphor
https://repo.qst.go.jp/records/44691
https://repo.qst.go.jp/records/44691f1652437-670f-46cc-918e-39141e12f72b
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2006-10-26 | |||||
タイトル | ||||||
タイトル | Thermoluminescence mechanism of dysprosium-doped beta-tricalcium phosphate phosphor | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
著者 |
Nakashima, Kouichi
× Nakashima, Kouichi× Takami, Michiko× Ohta, Masatoshi× Yasue, Tamotsu× Yamauchi, Jun× 高見 実智己 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | B-Tricalcium phosphate (-Ca3(PO4)2, B-TCP) and dysprosium-doped B-tricalcium phosphate (B-Ca3(PO4)2:Dy, B-TCP:Dy) phosphor were synthesized. Powder X-ray diffraction, electron spin resonance (ESR), photolouminescence (PL) and thermoluminescence (TL) were measured. Although no PL and TL could be identified for undoped B-TCP, PL and TL were observed for B-TCP:Dy phosphor. The TL emission peaks are assigned to the f-f transitions of the Dy3+ ion which were found to be the same as those of the PL of B-TCP:Dy phosphor. A detailed analysis of the TL peak shape can give information on the trap depth (activation energy E), indicating the trap depth of E=1.1eV from Hoogenstraaten's method. We succeeded in detecting the stable trapped hydrogen atom in the X-ray-irradiated B-TCP:Dy phosphor at toom temperature for several months using ESR. The TL phenomenon of B-TCP:Dy phosphor is related with these trapped hydrogen atoms. | |||||
書誌情報 |
Journal of Luminescence 巻 111, 号 1/2, p. 113-120, 発行日 2005-01 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0022-2313 |