Photoluminescence and its Enhancement of Pr3+-Doped BaTiO3 Phosphor
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概要
- 論文の詳細を見る
We succeeded in developing a new praseodymium (Pr3+)-doped BaTiO3 phosphor with the addition of Mg, which exhibits a strong red emission, using a high-concentration sol–gel process in which the obtained gel was fired at 1200°C for 2 h. The photoluminescence is due to intra-4f transitions of Pr3+, mainly from the excited states 1D2 to the ground states of 3H4. An approximately 60 fold enhancement of light emission in 0.1 mol% Pr-doped BaTiO3 was achieved by adding 0.5 mol% Mg. This emission enhancement is discussed on the basis of the increments of effective energy transfer between the overlapped absorption band of BaTiO3 and the 4f–5d band of Pr3+, and on the effective charge compensation by the addition of Mg.
- INSTITUTE OF PURE AND APPLIED PHYSICSの論文
- 2005-05-10
著者
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Kuwabara Makoto
Department Of Applied Chemistry Faculty Of Engineering Kyushu Institute Of Technology
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Wu Yong
Department Of Applied Science For Electronics And Materials Kyushu University
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Li Juan
Department Of Applied Science For Electronics And Materials Kyushu University
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Kuwabara Makoto
Department of Applied Science for Electronics and Materials, Kyushu University, 6-1 Kasuga-koen, Kasuga, Fukuoka 816-8580, Japan
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Li Juan
Department of Applied Science for Electronics and Materials, Kyushu University, 6-1 Kasuga-koen, Kasuga, Fukuoka 816-8580, Japan
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Wu Yong
Department of Applied Science for Electronics and Materials, Kyushu University, 6-1 Kasuga-koen, Kasuga, Fukuoka 816-8580, Japan
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