采用电子探针、扫描电镜、透射电镜 ,X射线衍射、拉曼等技术观察测试了硅太阳能电池切削硅粉为形状不规则、大小不一的单相微米颗粒 ,存在应力应变和非晶态 ;用激光粒度仪测试了微米硅粉粒径呈近正态分布 ,中值为 5 .89μm .经处理后 ,可望作为合成Si3 N4 ,SiC的原料或制备光选择性吸收涂层 . Electron microprobe, scanning electron microscopy, transmission electron microscopy, X-ray diffraction, Raman and other techniques were used to observe the silicon solar cell cutting silicon powder is irregular shape, size of single-phase micron particles, the existence of stress strain and amorphous; The particle size of the micron silicon powder was nearly normal distribution measured by laser particle sizer, with a median value of 5.89μm, which could be used as a raw material for the synthesis of Si3N4 and SiC or preparation of a photo-selective absorption coating.