https://scholars.lib.ntu.edu.tw/handle/123456789/407401
標題: | Microwave-assisted solvothermal preparation and photoluminescence properties of Y 2O 3:Eu 3+ phosphors | 作者: | Liu F.-W. Hsu C.-H. Chen F.-S. Lu C.-H. |
關鍵字: | D. Y 2O 3;Methanol;Microwave;Solvothermal;Spherical | 公開日期: | 2012 | 卷: | 38 | 期: | 2 | 起(迄)頁: | 1577-1584 | 來源出版物: | Ceramics International | 摘要: | Europium doped yttrium oxide phosphors were synthesized by a rapid microwave-assisted solvothermal method. The microwave processing time for synthesizing the precursors of Y 2O 3:Eu 3+ powders was as short as 5 min. After calcination at 600 ¢XC, a well-crystallized pure phase of Y 2O 3:Eu 3+ was obtained. The morphology of the precipitated powders was spherical and composed of nano-sized grains. As the microwave irradiation time was increased, the average particle size of the spherical powders increased, and the crystallinity of heat-treated powders was also enhanced. The synthesized powders retained the spherical morphology after heating treatments. An intense red emission at 611 nm was assigned to the 5D 0- 7F 2 transition of Eu 3+. ? 2011 Elsevier Ltd and Techna Group S.r.l. All rights reserved. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/407401 | ISSN: | 02728842 | DOI: | 10.1016/j.ceramint.2011.09.044 |
顯示於: | 化學工程學系 |
在 IR 系統中的文件,除了特別指名其著作權條款之外,均受到著作權保護,並且保留所有的權利。