ZnO:Eu^(3+)纳米晶的制备及其光谱分析  

Preparation and Optical Investigation of Europium-doped Zinc Oxide Nanocrystals

作　　者：李庆福[1] 黄世华[1] 刘舒曼[1] 张希清[1] 

机构地区：[1]北方交通大学光电子技术研究所

出　　处：《激光与红外》2003年第2期145-147,共3页Laser & Infrared

基　　金：中国国家重点基础研究发展规划-稀土功能材料的基础研究资助(G1998061309)

摘　　要：制备了ZnO:Eu^(3+)的纳米颗粒,得到粒径在5nm左右的纳米晶。通过光谱分析研究了不同浓度的掺杂对ZnO发光性质的影响,Eu掺杂可以提高纳米ZnO的发光亮度及影响其粒径大小,并观察到了ZnO与Eu之间的能量传递。Eu3+-doped zinc oxide nanocrystals were successfully prepared by between Zn-O-Eu precursors and LiOH in ethanol. Emission from both Eu3+ and surface state in ZnO matrix, as well as their correlation were observed. The luminescence mechanism is discussed. By analysing spectrum effect of Eu3+ -doped on luminescence of ZnO were studied, Eu3+-doped can enhance luminescence brightness of ZnO and effect magnitude of ZnO particles.

关 键 词：纳米晶 溶胶—凝胶 能量传递 光致发光 ZnO:Eu3+ 氧化锌 铕 Ⅱ—IV族半导体 

分 类 号：TN304.2[电子电信—物理电子学]