摘要
当前多晶硅已成为最主要的光伏材料。多晶硅锭定向凝固生产技术主要包括浇注法、热交换法(HEM)、定向凝固系统法(DSS)和电磁铸锭法;研究发展主要集中在增大硅锭尺寸和提高生长速率,以及一些热场和工艺上的改进尝试。多晶硅锭生长过程及其控制的复杂性以及硅原料的昂贵使得计算机模拟方法的优势突显,在国外得到了积极的研究应用,取得了很有技术参考价值的模拟研究结果。
Multicrystalline silicon (mc-Si) has become the dominant material for solar cells. The current major solidification technologies used for production of mc-Si ingots are casting, heat exchange method (HEM), directional solidification system (DSS) and electro-magneto casting (EMC). The research and development of this field mainly focus on increasing the size of the ingot and raising the growth rate of the ingots. Improvements in thermal field design and processes have also been carried out. The complexity in the system and process of mc-Si ingot growth and high cost of the silicon feedstock push forward the role of numerical simulation in R&D of the directional solidification technology for mc-Si production. A great number of such research and application appeared abroad, from which valuable technical information has been obtained.
出处
《材料导报》
EI
CAS
CSCD
北大核心
2008年第9期91-94,105,共5页
Materials Reports
关键词
多晶硅
定向凝固
计算机模拟
multicrystalline silicon, directional solidification, computer simulation