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" ... By fine-tuning the texture of the surface of a material on the nanoscale, the same scale as the wavelengths of light we see in, scientists can tailor the heat and light absorption of a material to optimise it for a range of uses. When it comes to absorbing as much light as possible, for example in solar energy devices, nature provides us with even more inspiration, for example in the eyes of moths, which are patterened in such a way that the little light available in very dim conditions is funnelled into the moth's eye, allowing it to see in low-level lighting with little light being reflected. The light that is absorbed is also of a range of wavelengths, or 'broadband' light. Such properties would be hugely beneficial in solar energy harvesting, where solar panels could potentially increase their efficiency by absorbing more light across the entire solar spectrum. ... "