期刊
JOURNAL OF ALLOYS AND COMPOUNDS
卷 487, 期 1-2, 页码 483-488出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2009.07.165
关键词
Rare earth compounds; Nanomaterials; Nanorods; Photoluminescence
资金
- Natural Science Foundation of Shanghai [08ZR1407600]
- Innovation Program of Shanghai Municipal Education Commission [09YZ18]
- Shanghai Educational Development Foundation [2008CG49]
- Leading Academic Discipline Project of Shanghai Municipal Education Commission [J50102]
- International Cooperation Project of Shanghai Science and Technology Commission [07SU07001]
- Chinese Ministry of Education [208182]
- Shanghai Special Foundation for Selected Cultivation of Excellent Young University Teacher
- Scientific Grant for Outstanding Young Faculty of Shanghai University
A large-scale synthesis of uniform Eu2O3 nanorods was realized without templates by a simple precipitation method under ambient pressure with the subsequent calcination. The products were characterized by X-ray diffraction spectroscopy, transmission electron microscopy, scanning electron microscopy, thermogravimetry and differential scanning calorimetry. It is demonstrated that the Eu2O3 nanorods with the pure body-centered cubic structure have a diameter of similar to 20 nm and a length of 100-300 nm. The influence of reaction temperature, solution concentration, and reaction time on the formation of nanorods is investigated, and the possible growth mechanism is also discussed. The room temperature photoluminescence analysis shows that Eu2O3 nanorods have a strong red emission peak of Eu3+ ion at around 611 nm due to the D-5(0) -> F-7(2) forced electric dipole transition of Eu3+ ions. (C) 2009 Elsevier B.V. All rights reserved.
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