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A study identifies early-stage technologies that could be combined to cut the cost of solar panels in half.
A new process uses a high-energy ion accelerator to make thin silicon solar cells.
Plastic cells are lighter than silicon ones, but they’re not as efficient–one company aims to fix that.
The company had a head start on technology that allows solar cells to be manufactured more cheaply, but lost out to Chinese competitors.
Metamaterials that convert lower-energy photons to usable wavelengths could offer solar cells an efficiency boost.
Thin-film silicon solar cells are more efficient with tiny holes in the back electrical contact.