文献类型：期刊文献

英文题名：The Effect of Fluorine Anions on the Luminescent Properties of Eu-Doped Oxyfluoride Aluminosilicate Glasses

作者：Lin, Zhenyu[1];Zeng, Huidan[1];Yang, Yifan[1];Liang, Xiaoluan[1];Chen, Guorong[1];Sun, Luyi[2,3]

机构：[1]E China Univ Sci & Technol, Sch Mat Sci & Engn, Minist Educ, Key Lab Ultrafine Mat, Shanghai 200237, Peoples R China;[2]Texas State Univ San Marcos, Dept Chem & Biochem, San Marcos, TX 78666 USA;[3]Texas State Univ San Marcos, Mat Sci & Engn Program, San Marcos, TX 78666 USA

年份：2010

卷号：93

期号：10

起止页码：3095

外文期刊名：JOURNAL OF THE AMERICAN CERAMIC SOCIETY

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000282637200047)】；

基金：This work was financially supported by the National Natural Science Foundation of China (NSFC 50702021), the Research Funds for Young Teachers for the Doctoral Program by Ministry of Education of China (20070251013), and the Shanghai Leading Academic Discipline Project (project B502).

语种：英文

摘要：Eu-doped oxyfluoride aluminosilicate glasses were prepared by melt-quenching method. The glass samples were characterized by photoluminescence (PL) spectroscopy and electron paramagnetic resonance techniques. In the glass samples, the reduction of Eu3+ to Eu2+ ions occurred in the air condition. The PL spectra showed that the intensity of 4f65d -> 4f7 transition of Eu2+ ions increased and the corresponding peak wavelength decreased with increasing fluorine anion concentration. Meanwhile, the relative emission intensity ratio of Eu2+ to Eu3+ also depended on the content of fluorine anions. A possible reduction mechanism was discussed.