When it comes to converting sunlight into electricity, the photovoltaic mineral perovskite is just as efficient as silicon and costs just a fraction of the price. The only problem is perovskites are fragile and can deteriorate easily when exposed to the elements. By mimicking a hexagon-shaped resin found in eyes of insects, a team of researchers have now come up with an extremely thin wall that can be placed on pervoskite solar panels to protect them from harsh conditions. So far, the researchers have found that the insect eye-inspired panel can successfully guard the perovskites while generating electricity with high rates of efficiency.