The wings of a butterfly inspired a new kind of solar cell that can harvest light as effectively as before, and it is possible to improve our solar panels. Solar panels are usually made of thick solar cells and are positioned at an angle to obtain the maximum amount of light from the sun throughout the day. Thin-film solar cells can only have nanometer thickness and have great potential. These are cheaper and lighter, but due to their lower efficiency, we usually use them only in watches and calculators, not solar panels.
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Scientists studied the black wings of butterflies and copied the structures to create more efficient thin solar cells. Unlike other types of cells, they can absorb large amounts of light regardless of the angle, and are also easy to manufacture.
Butterflies grow in Southeast Asia. Because it is cold-blooded and requires sunlight to fly, its black wings have evolved into very good energy absorption. Vinod Saranathan, professor of biology at Yale University, said: "What's really interesting is that because millions of years have evolved into these complex structures. To figure out why these butterflies are so efficient, scientists look at the wings under an electron microscope and create A 3D model of wing nanostructures.Wings are made of tiny scales covered with randomly distributed holes that are less than a millionth of a meter in size, helping to spread light and help the butterflies absorb heat.
Most solar panels are positioned at an angle, which means that they generate a lot of electricity in a few hours and then not too much in the rest of the time. Solar panels using this technology can generate more electricity in one day. 