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晶体的α-Si3N4内核和非晶的SiO2外壳组成的纳米梳通过简单的直流电弧方法合成。通过X射线衍射(XRD)、扫描电子显微术(SEM)、透射电子显微术(TEM)、傅里叶红外光谱(FTIR)等对纳米梳进行表征。纳米梳的光致发光谱展现了两个强的发光峰,分别在450和511 nm。α-Si3N4/SiO2核壳结构纳米梳生长机制为等离子体辅助气-固生长机制。
Nano-combs composed of a-Si3N4 core and an amorphous SiO2 shell were synthesized by a simple DC arc method. Nanocombs were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FTIR) The photoluminescence spectrum of the nano-comb shows two strong luminescence peaks at 450 and 511 nm, respectively. The growth mechanism of α-Si3N4 / SiO2 core-shell nanocomposites is a plasma assisted gas-solid growth mechanism.