文献类型：会议论文

英文题名：A Study on the Magnetic and Photoluminescence Properties of Euⁿ⁺ and Sm³⁺ Doped Fe₃O₄ Nanoparticles

作者：Huan, Weiwei[1];Cheng, Chao[2];Yang, Yuxiang[1];Yuan, Hongming[3];Li, Yongxia[1]

机构：[1]E China Univ Sci & Technol, Sch Chem & Mol Engn, Shanghai 200237, Peoples R China;[2]Second Mil Med Univ, Changhai Hosp, Dept Nucl Med, Shanghai 200433, Peoples R China;[3]Jilin Univ, Coll Chem, State Key Lab Inorgan Synth & Preparat Chem, Changchun 130012, Peoples R China

会议论文集：5th International Conference on Surfaces, Coatings and Nanostructured Materials (NANOSMAT)

会议日期：OCT 19-21, 2010

会议地点：Reims, FRANCE

语种：英文

外文关键词：Solvothermal; Fe3O4; Nanoparticle; Rare-Doping; Magnetic Property

摘要：In this paper, Eun+, Sm3+ doped Fe3O4 nanoparticles were prepared via solvothermal method, in which Ferric chloride is used as the iron source, and anhydrous EuCl3, SmCl3 as doping source. Eu, Sm valence in doped Fe3O4 nanoparticles, and effects of Eu, Sm doping amount on their structure, morphology, magnetic properties and PL properties were discussed. The results show, the Eu ions had doped Fe3O4 nanoparticles in the mixed-valence state, when the Eu and Sm doping amount were increased, the doped Fe3O4 nanoparticles changed from hollow nanospheres into spherical particles, and finally changed into uniform cube-shaped particles with 13 nm in diameter. Moreover, the doping sites for doping ions in doped Fe3O4 nanoparticles were discussed from Rietveld analysis of XRD pattern of the doped Fe3O4 nanoparticles. And the changes of the magnetic and PL properties with the doping amount were further discussed. It was found that higher Sm3+-doping amount led to stronger magnetic dipole transitions, while the Eun+-doping amount had little effect on the magnetic dipole transitions, thus resulting in different changes in their saturation magnetization with doping amount.