Voltaic cells use photosynthesis
DOI: 10.1063/1.2914271
Photosynthesis in green plants is a quite remarkable solar‐energy storage system, which one would dearly love to mimic. But after two centuries of investigation we still have only a very incomplete picture of how plants harness photons in the visible spectrum to perform the trick of knocking out of water molecules the electrons that ultimately serve to reduce carbon dioxide to energy‐rich carbohydrates.