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 cetyltrime...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.展开更多
文摘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.
