Submitted by Wagamaga t3_z5ibnc in technology
hithisishal t1_ixztslk wrote
Reply to comment by myne in Record efficiency of 26.81% for large silicon solar cells by Wagamaga
They're not. Solar wafers are pretty different from wafers for IC / transistor fab. They are much thinner, rectangular so they can pack well, and are generally sold rough cut rather than polished.
myne t1_iy0dcf6 wrote
That's all in the cutting/polishing.
Here's an ingot prior to cutting :
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