Once again it comes to carbon nanotubes and this time we find it combined with graphene [something we expect to see in CPUs soon –Ed]. Scientists have created a solar cell designed like sandwich in which the electrodes are made of graphene (a special honeycomb structure of carbon atoms just one atom thick) and carbon nanotubes. Between the electrodes there is special photoactive layer. This photoactive layer is composed of carbon molecules one nanometer in diameter. Otherwise, these molecules form a soccer ball called "buckyballs." The end result is that the whole solar cell made from carbon.