A cooling layer for solar cells

Solar power is growing in popularity around the world, with huge solar farms springing up all over the place. Obviously, solar panels need as much sunlight as possible, but this also means that they heat up, limiting their efficiency at converting sunlight into electricity. This conundrum may now be solved, thanks to a clever coating designed by Aaswath Raman and his colleagues at Stanford University. Like this podcast? Please help us by supporting the Naked Scientists