Synthesis and Properties of Luminescent Material La<,2>O<,2>CO<,3>

摘要：

A novel rare earth luminescent material La<,2>O<,2<CO <,3> was synthesized successfully by sintering the mixture of La<,2>(CO<,3>)<,3> and KCl powders. The XRD results revealed that the additive KCl not only affected the crystal form and crystallinity of the final product, but also greatly promoted its luminescence, compared with the products without adding KCl. The as-prepared material showed a strong green emission band centered at 470 nm under the excitation of 325 nm. Our experimental results indicated that the crystal form of La<,2>O<,2>CO<,3> affected its luminescent properties significantly. According to the primary analysis, the green emission might be related to the oxygen vacancies in La<,2>O <,2>CO<,3> lattice.

关键词： luminescent material lanthanum rare earths

作者: Fei Xiaoyan(费晓燕) Tao Zhenwei(陶振卫) Liu Jie (刘洁) Yu Xibin (余锡宾) Zhao Yongheng(赵永恒) Wu Honge(吴红娥) Zhu Jingxuan(朱憬煊)

作者单位: Department of Chemistry, Shanghai Normal University, Shanghai 200234, China

会议类型: 国际会议

会议名称: 第五届国际稀土开发与应用研讨会(The Fifth International Conference on Rare Earth Decelopment and Applicatin)

会议地点: 包头

会议语种:英文

页码: 342-344

在线出版日期: 2007-08-07（万方平台首次上网日期，不代表论文的发表时间）