TECH
03/18/2010 05:12 am ET Updated May 25, 2011

Origami Solar Cells: Silicon Sheets Self-Assemble To Catch Light

One way to squeeze more power out of sunlight is to ensure that it always hits a solar panel at the ideal angle. This means either tracking the sun and maneuvering a panel to face it, or using complex optics to redirect the sun's rays to hit the panel's surface from above.

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