Light-storing carbon nitrides: From dark photocatalysis to solar batteries and light-driven microswimmers

Poly(heptazinimide), a chemically robust and versatile carbon nitride, is equipped with unique opto-electronic and -ionic properties. These properties allow for the simultaneous conversion and storage of sunlight within one single material. From classical photocatalysis to photocatalysis in the dark, all the way to solar batteries, light-driven microswimmers and novel sensors - carbon nitrides are chemical all-rounders and open up new perspectives at the interface between solar energy conversion and electrochemical energy storage.