A new way to make silicon solar cells

Typically, the silicon wafers in solar cells are cut from blocks of refined crystalline silicon with a saw, producing silicon sawdust and thus wasting about half the total block.  A solar startup is working on a way to peel off thin sheets of silicon, without as much cutting and waste.  Since refined crystalline silicon is one of the larger costs in solar cell manufacture, this could be another avenue to reduce the price of solar energy.

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