Abstract

Unique sulfur- and carbon- doped silicon nanoparticles, as well as partially oxidized, are obtained by nanosecond laser ablation of silicon in liquid carbon disulfide. Detailed structural, chemical, and optical characterization of these particles was performed by scanning and transmission electron microscopy, IR spectroscopy, energy dispersive X-ray spectroscopy, and Raman scattering spectroscopy. It is shown that the sulfur concentration in particles is on the order of 1 at %, owing to which they demonstrate a considerable absorption in the mid-IR region.

中文翻译：

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胶态硫和碳掺杂硅纳米粒子的激光形成

摘要

通过在液态二硫化碳中对硅进行纳秒激光烧蚀，可以获得独特的硫和碳掺杂的硅纳米颗粒，以及被部分氧化的纳米颗粒。通过扫描和透射电子显微镜，IR光谱，能量色散X射线光谱和拉曼散射光谱对这些颗粒进行详细的结构，化学和光学表征。结果表明，颗粒中的硫浓度约为1 at％，这是因为它们在中红外区域显示出相当大的吸收率。