本文总结了近年来我们在功能准一维纳米结构材料研究方面所获得的一些有意义的结果。借助于现代电子显微镜技术 ,不仅研究了硅、氮化稼、氧化锌等一维纳米材料的形貌和显微结构 ,还研究了其一维择优生长机理及小尺度效应。尤其是利用高能量分辨电子能量损失谱、高角环形暗场探头等先进技术 ,解决了一个传统X -光等结构分析手段所不能解决的难题 ,分析了一种SiOx SiC复合纳米电缆的成份与结构 In this paper, we summarize some of the significant results we have obtained in the field of functional quasi-one-dimensional nanostructured materials in recent years. With the aid of modern electronic microscope technology, not only the morphology and microstructure of one-dimensional nanomaterials such as silicon, nitride and zinc oxide have been studied, one-dimensional preferential growth mechanism and small-scale effect have also been studied. In particular, the use of advanced techniques such as high-energy-resolved electron energy loss spectroscopy and high-angle toroidal dark field probes solves the difficult problem that can not be solved by traditional X-ray structural analysis methods and analyzes the composition and structure of a SiOx SiC composite nanowire