An antireflective film inspired by moth's eyes has been shown to improve the efficiency of solar cells (Photo: Olaf Leillinger)
The Japanese moth-eye film
In order for a solar cell to be as efficient as possible, the last thing it should be is reflective – after all, light should be getting absorbed by it, not being bounced off. With that in mind, a few years ago a group of Japanese scientists set out to create an antireflective film coating for use on solar cells. What they ended up creating utilizes the same principles that are at work in one of nature’s least reflective surfaces: moth’s eyes.
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