Simplified Synthesis and Luminous Mechanism of Eu^(2+)-Doped A-Si_3N_4 Nanowires with Strong Green Luminescent Properties

Ultra-long,single crystal,Eu-doped α-Si3N4 nanowires were prepared by a simple approach involving nitriding Eu-doped cryomilled nanocrystalline Si powder in NH3 flow at 1350℃ for 4 h.Phases,chemical composition and microcosmic feature were tested by X-ray diffraction(XRD),field emission scanning electron microscopy(FESEM),transmission electron mi-

Ultra-long, single crystal, Eu-doped α- Si3N4 nanowires were prepared by a simple approach involving nitriding Eu-doped cryomilled nanocrystalline Si powder in NH3 flow at 1350 ℃ for 4 h. Phases, chemical composition and microcosmic feature were tested by X-ray diffraction （XRD）, field emission scanning electron microscopy （FESEM）, transmission electron microscopy （TEM/HRTEM）, respectively.