Metallurgical grade silicon an alternative to Polysilicon?
I thought this was an interesting bit of news from Digitimes. The shortage and thus the high prices of polysilicon is forcing the solar cell industry to look for alternatives and metallurgical-grade silicon seems to be it. According to the article, a number of companies have started testing production of silicon wafers from metallurgical-grade silicon.
The article doesn’t go into very much detail but it would be interesting to find out the efficiency level that can be reached using metallurgical-grade silicon as opposed to polysilicon. It’s obviously not going to be as efficient but the question is exactly how much efficiency do you loose? Can it compete against thin-film solar cells?
Would love to find out answers to these questions if there is a solar expert reading this article.
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