以液态金属镓为媒介,利用热蒸发法合成大量非晶SiOx纳米管,这些纳米管管径均匀分布,平均约80 nm,长度大于10μm,且管内外径比例较小．分析发现,在实验过程中,熔入金属镓液滴中的硅元素和氧元素结合并从液滴的表面饱和析出,形成以镓为中心的非晶SiOx纳米管状结构．在室温中,利用260 nm的激发光源激发SiOx纳米管,发现在蓝光波段附近发出强而稳定的PL谱线,这可能与样品中的氧缺陷和空位有关． A large number of amorphous SiOx nanotubes were synthesized by thermal evaporation using liquid metal gallium as a medium. The nanotubes were uniformly distributed with an average diameter of about 80 nm and a length of more than 10 μm. It was found that during the experiment, the silicon element and the oxygen element, which are melted into the metal gallium droplet, combine and precipitate out of the droplet surface to form an amorphous SiOx nanotube structure centered on the gallium. At room temperature, excitation of SiOx nanotubes with an excitation light source at 260 nm revealed strong and stable PL spectra near the blue band, which may be related to oxygen defects and vacancies in the sample.