Geometric pattern maximizes time light is trapped in solar cell
The sun’s energy is virtually limitless, but harnessing its electricity with today’s single-crystal silicon solar cells is extremely expensive — 10 times pricier than coal, according to some estimates. Organic solar cells — polymer solar cells that use organic materials to absorb light and convert it into electricity — could be a solution, but current designs suffer because polymers have less-than-optimal electrical properties.
[source: http://feeds.importantmedia.org/~r/IM-greenbuildingelements/~3/vr5OzqU1O7w/]
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