粉体および粉末冶金
Online ISSN : 1880-9014
Print ISSN : 0532-8799
ISSN-L : 0532-8799
研究論文
CaSrSiO4:Eu2+橙赤色蛍光体の発光特性におけるフラックス剤を用いた還元焼成の効果
小向 哲史横山 潤佐藤 泰史加藤 英樹垣花 眞人
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ジャーナル オープンアクセス

2016 年 63 巻 9 号 p. 835-839

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The effects of heat-treatments with various conditions such as temperature, atmosphere and fluxing agents on photoluminescence properties of CaSiSiO4:Eu2+ phosphors were investigated in detail. X-ray absorption fine structure of CaSrSiO4:Eu2+ phosphors heat-treated at various temperatures revealed that the reduction from Eu3+ to Eu2+ in the precursor powder was effectively promoted at the temperatures higher than melting temperature of fluxing agent. We found that red shift of emission peak was caused by pre-heat-treatment under a reduced atmosphere. The effect of fluxing agents such as BaCl2, SrCl2, CaCl2 on photoluminescence properties of CaSrSiO4:Eu2+ phosphor was also examined. The results indicate that CaSrSiO4:Eu2+ phosphor heat-treated using BaCl2 flux shows high emission efficiency. We also recognized that the small amounts of Ba2+ was incorporated into CaSrSiO4 lattice due to the ion exchange.

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© 2016一般社団法人粉体粉末冶金協会

本論文はCC BY-NC-NDライセンスによって許諾されています.ライセンスの内容を知りたい方は,https://creativecommons.org/licenses/by-nc-nd/4.0/deed.jaでご確認ください.
https://creativecommons.org/licenses/by-nc-nd/4.0/deed.ja
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