Researchers from the University of Copenhagen and the Chinese Academy of Sciences developed a transparent transistor made from just one molecular monolayer graphene. The graphene was used as transparent top-contacts in this design. The new "molecular computer chip" is built from three layers: gold, molecular components and graphene. The molecular transistor is switched on and of using a light impulse.

While such chips may be used to make integrated circuits in the future, the first application the researchers found was testing of molecular electronics. The new chip enables molecular placement with great precision, which speeds up molecular research.