The trick is to coat an object or any material in perovskite, a calcium titanium oxide mineral -- it's inexpensive like organic solar cells, but absorbs light nearly as well as silicon.

Cheap Paint Based Solar cells can revolutionize DIY Energy?

In the lab, the technology isn't quite ready for culmination yet. A spray-based cell gets about 11 percent efficiency versus 19 percent at perovskite's ideal performance. However, it's still early days. Scientists believe that their approach could ramp up to the same manufacturing methods and processes used for spray painting vehicles. If that happens, it's conceivable that your future car and virtually any other device could harvest the sun's rays without the steep costs and awkward designs that are frequently involved when you use old-fashioned solar panels.

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