The cast processes of multicrystalline silicon were comparatively developed- The research on its defects and impurities was in progress.
现在，其铸造工艺相对成熟：对材料的缺陷和杂质的研究日趋深化；
2
The chemical etching method wa applied to form surface texture of multicrystalline silicon in order to reduce the reflectance of the surface.
为了降低光在多晶硅表面的反射，采用化学腐蚀法在其表面制备了绒面。
3
The recombination activity of grain boundaries (GBs) in casting multicrystalline silicon (mc-Si) was investigated through an electron beam induced current (EBIC) technique.