采用大功率连续ＣＯ２激光熔凝掳粉末，生长得到纯度较高的太阳能多晶硅材料。探讨了影响太阳电池效率的少子复合中心和材料的微观组织结构以及激光消除复合中心和改善微观组织结构的机理。在实验中获得了杂质浓度低且呈较整齐分布的技状晶太阳能多晶硅材料。 Using high-power continuous CO2 laser melting captivity powder to grow to obtain high purity solar polysilicon material. The microstructure of the minority daughter recombination centers and materials that affect the solar cell efficiency, as well as the laser ablation recombination center and the mechanism of improving the microstructure were discussed. Obtained in the experiment the impurity concentration is low and more neatly distributed technology crystal solar polysilicon material.