Researchers developed a new graphene based film that can detect trace amounts of environmental contaminants. The film is made from semiconductor-graphene-metal, by taking a graphene sheet and depositing metal (silver) nanoparticles and semiconductor titanium dioxide on either side.

The film can be used to test water quality, and this requires precise control over metal deposition and size. The film is capable of selectively splitting hydrogen and oxygen.

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Versarien - Think you know graphene? Think again! Versarien - Think you know graphene? Think again!