Graphene Oxide (GO) support films are one of the thinnest support films available. Flakes of GO lie across holes in a base support film to create an ultra-thin film making GO films ideal for imaging Carbon Nanoparticles where a continuous film is required but the Carbon support would result in low contrast. For good monolayer coverage we expect ~ 50-70% of the grid area to be covered with GO and up to 30% of that coverage to be monolayer. If a different thickness of GO is more suitable for your application please contact us for a quote. GO films are inherently hydrophilic and should not be plasma cleaned before use as this may damage the film. GO films also have higher heat and electrical conductivity than Carbon films.