硼是多晶硅太阳电池的受主元素,影响太阳电池的光电转换效率和稳定性.硼在硅中的物理性质很稳定,通过定向凝固、真空熔炼等方法很难去除.主要介绍了冶金法除硼的研究进展,包括吹气造渣除硼、等离子体除硼、合金定向凝固除硼工艺.同时,介绍了本实验室采用冶金法除硼的最新实验结果.
Boron is one of acceptor elements in polycrystalline silicon solar cells, which can influence the photo-voltaic efficiency and stability of a solar cell. It is difficult to remove boron by solidification or vacuum melting because the physical property of boron in silicon is very stable. The present research progress in boron removal by metallurgi-cal methods, mainly including gas blowing and slagging, plasma treatment, alloy solidification is summarizd. At the same time, the latest experimental results of our research on boron removal by metallurgical refining are introduced here.
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