Preparation and luminescence characterization of new carbonate (Y_2(CO_3)_3-nH_2O:Eu~(3+)) phosphors via the hydrothermal route

Hau-Yun Chang; Fu-Shan Chen; Chung-Hsin Lu

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Preparation and luminescence characterization of new carbonate (Y_2(CO_3)_3-nH_2O:Eu~(3+)) phosphors via the hydrothermal route

机译：水热法制备新型碳酸盐（Y_2（CO_3）_3-nH_2O：Eu〜（3+））荧光粉的制备及发光特性

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A new Eu~(3+)-activated Y_2(CO_3)_3-nH_2O phosphor was successfully prepared via the hydrothermal process using urea as a reaction agent. Y_2(CO_3)_3-nH_2O:Eu~(3+) phosphors displayed an intense red emission at 615 nm due to the ~5D_0 - > ~7F_2 transition of Eu~(3+) ions under 254nm excitation. The intensity of this emission was significantly increased with a rise in the hydrothermal temperatures. The study of photo-luminescence properties demonstrated that Y~(3+) ions were replaced by Eu~(3+) ions in the host lattice at the 9-coordination sites. With an increase in heating temperatures, the morphology of Y_2(CO_3)_3nH_2O:Eu~(3+) powders changed from a spherical to a rod-like shape.

机译：以尿素为反应剂，通过水热法成功制备了新型的Eu〜（3+）活化的Y_2（CO_3）_3-nH_2O荧光粉。 Y_2（CO_3）_3-nH_2O：Eu〜（3+）荧光粉在254nm激发下由于Eu〜（3+）离子的〜5D_0-~~ 7F_2跃迁而在615nm处显示出强烈的红色发射。随着水热温度的升高，这种发射的强度显着增加。对光致发光性质的研究表明，在9位配位位点的主晶格中，Y〜（3+）离子被Eu〜（3+）离子取代。随着加热温度的升高，Y_2（CO_3）_3nH_2O：Eu〜（3+）粉末的形貌从球形变为棒状。

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《Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics》 |2011年第41期|共6页
作者
Hau-Yun Chang; Fu-Shan Chen; Chung-Hsin Lu;
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正文语种 eng
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Phosphor; Luminescence; Hydrothermal;

机译：磷;发光;水热;

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1. Preparation and luminescence characterization of new carbonate (Y_2(CO_3)_3-nH_2O:Eu~(3+)) phosphors via the hydrothermal route [J] . Hau-Yun Chang, Fu-Shan Chen, Chung-Hsin Lu Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics . 2011,第41期

机译：水热法制备新型碳酸盐（Y_2（CO_3）_3-nH_2O：Eu〜（3+））荧光粉的制备及发光特性
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4. Preparation of YVO_4:Eu~(3+),Ln (Ln = Bi~(3+), La~(3+), Li~+) red phosphors by combustion synthesis and their luminescence properties [C] . Zhen-hua Liang, Feng-qi Lu, Hai-long Zhang, International Conference on Optical, Electronic and Electrical Materials;OEEM2010 . 2011

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Preparation and luminescence characterization of new carbonate (Y_2(CO_3)_3-nH_2O:Eu~(3+)) phosphors via the hydrothermal route

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