When it comes to moving forward with technology, we tend to fall back on nature. After all, in most ways, science is organic. If slugs can inspire a medical glue that will ease the difficulties of surgery, other animals can do the same. To improve on solar panels, researchers are drawing ideas from black butterflies.
The rose butterfly is native to Southeast Asia. Because it is cold-blooded and needs sunlight to fly, its black wings have evolved to be very good at absorbing energy.
Normally, solar panels are made with thick solar cells. Thin film solar cells have a lot of potential, but are not as productive. The black butterflies absorb heat perfectly because their wings are covered in holes. These holes effectively scatter light.
“I think what’s interesting is the excellent approach of looking at the underlying physiological concepts and then taking these concepts and emulating them in a structure that doesn’t look quite look like how a butterfly looks but does the same physics,” says Mathias Kolle, a professor of engineering.
The research has since received proper funding and, hopefully, will flutter along seamlessly.