A new device that can produce carbon-neutral fuel marks a major breakthrough on the way to "artificial photosynthesis", according to the scientists who created it.
The standalone device can convert sunlight, carbon dioxide and water into clean energy, doing so wirelessly and without any outside electricity, the Cambridge researchers who built it say.
They hope that it can be a step towards using artificial devices to mimic photosynthesis, converting sunlight into energy in the same way plants do.