Synthesis and Fluorescence Properties of Eu ^(2+)-Doped KMgF_3 Nanoparticles  

作　　者：YAN Jing-hui ZHANG Ming LIAN Hong-zhou LIU Jie LI Zhong-tian CAO Jie SHI Chun-shan 

机构地区：[1]College of Materials and Chemical Engineering, Changchun University of Science and Technology, Changchun 130022, P. R. China [2]Key Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China

出　　处：《Chemical Research in Chinese Universities》2006年第3期274-277,共4页高等学校化学研究（英文版）

基　　金：SupportedbytheNationalNaturalScienceFoundationofChina(No.90201032)andtheScienceandTechnologyDepartmentofJilinProvince(No.20050507).

摘　　要：The phase diagram of a cetyltrimethyl ammonium bromide （CTAB）/n-butanol/n-octane/KNO3-Mg（ NO3）2 system was drawn. Nanoparticles of Eu^2＋ -doped KMgF3 were prepared from the quaternary microemulsions of cetyltrimethyl ammonium bromide（ CTAB）, a-butanol, n-octane and water. The X-ray diffraction（XRD） patterns were indexed to a pure KMgF3 cubic phase. The environmental scanning electron microscopic（ESEM） images show the presence of spherical Eu^2＋ -doped KMgF3 nanoparticles with a diameter of ca. 20 nm. The emission of KMgF3： Eu^2＋ nanoparticles peaks at 360 nm. The excitation band was observed at 250 nm with a blue shift of ca. 70 nm compared with that of KMgF3： Eu^2＋ single crystal. The preparation method of nano-KMgF3： Eu^2＋/PMMA composite films was inquired into.The phase diagram of a cetyltrimethyl ammonium bromide （CTAB）/n-butanol/n-octane/KNO3-Mg（ NO3）2 system was drawn. Nanoparticles of Eu^2＋ -doped KMgF3 were prepared from the quaternary microemulsions of cetyltrimethyl ammonium bromide（ CTAB）, a-butanol, n-octane and water. The X-ray diffraction（XRD） patterns were indexed to a pure KMgF3 cubic phase. The environmental scanning electron microscopic（ESEM） images show the presence of spherical Eu^2＋ -doped KMgF3 nanoparticles with a diameter of ca. 20 nm. The emission of KMgF3： Eu^2＋ nanoparticles peaks at 360 nm. The excitation band was observed at 250 nm with a blue shift of ca. 70 nm compared with that of KMgF3： Eu^2＋ single crystal. The preparation method of nano-KMgF3： Eu^2＋/PMMA composite films was inquired into.

关 键 词：FLUORIDE Microemulsion phase diagram NANOSTRUCTURE X-ray diffraction LUMINESCENCE 

分 类 号：O641.4[理学—物理化学] TB383[理学—化学]