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A startup’s silicon solar cells save on costs by using less material.
Optical antennas could help solar cells produce more energy.
An ARPA-E project will use advanced, nanostructured materials to make solar cells that convert far more of the energy in sunlight into electricity.
Startup Natcore says its process could reduce costs and enable new nanostructured designs.
The company had a head start on technology that allows solar cells to be manufactured more cheaply, but lost out to Chinese competitors.