Diamond materials as solar-powered electrodes: Spectroscopy shows what’s important
Four diamond materials are shown here: “Diamond black” made of polycrystalline nanostructured carbon (top right), the same material before nanostructuring (top left), an intrinsic single crystal (bottom left) and a single crystal doped with boron (bottom right). Credit: A. Chemin/HZB It sounds like magic: photoelectrodes could convert the greenhouse gas CO2 back into methanol or