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Moth eyes inspire solar cells that work indoors

As a rule, most solar cells need to catch direct sunlight. Even those that work indoors can only do so much to generate power from artificial light sources. However, British researchers have found a clever (and decidedly) unusual way to harvest energy while inside: by imitating moths. They've created a graphene-based material that traps electromagnetic waves much like a moth's eye, making it one of the most energy-absorbent substances to date. With the right antennas, it could produce energy from not just sunlight, but any device that emits microwave or radio waves -- your smartphone could help power your smartwatch.

Article source: http://www.engadget.com/2016/02/29/moth-eyes-inspire-solar-cells/

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