title: One-step synthesis of a suspended ultrathin graphene oxide film: application in transmission electron microscopy.
abstract: Ultrathin graphene films find their use as advantageous support for nano- and biomaterials investigations. Thin film causes a very slight deterioration to measured signals, thus providing more details of the object's structure at nanoscale. The ultimate thinness of graphene works in the best way for this purpose. However, obtaining suspended thin film of a large-area, which is convenient for applications, is often a relatively complicated and time-consuming task. Here we present a one-step 1-min technique for synthesis of an extremely thin (about 1-2 nm) continuous film suspended over cells of a conventional copper grid (50-400 μm mesh). This technique enables us to acquire a large-area film which is water-resistant, stable in organic solvents and can act as a support when studying nanoparticles or biomaterials. Moreover, the very mechanism of the film formation can be interesting from the point of view of other applications of ultrathin graphene oxide papers.
authors.affiliation: Ioffe Physical-Technical Institute, Politekhnicheskaya 26, 194021 St-Petersburg, Russia; EMAT, University of Antwerp, Groenenborgerlaan 171, B-2020 Antwerp, Belgium. Electronic address: Demid.Kirilenko@mail.ioffe.ru.
authors.forename: D A
authors.initials: DA
authors.lastname: Kirilenko
authors.affiliation: Ioffe Physical-Technical Institute, Politekhnicheskaya 26, 194021 St-Petersburg, Russia.
authors.forename: A T
authors.initials: AT
authors.lastname: Dideykin
authors.affiliation: Ioffe Physical-Technical Institute, Politekhnicheskaya 26, 194021 St-Petersburg, Russia.
authors.forename: A E
authors.initials: AE
authors.lastname: Aleksenskiy
authors.affiliation: Ioffe Physical-Technical Institute, Politekhnicheskaya 26, 194021 St-Petersburg, Russia.
authors.forename: A A
authors.initials: AA
authors.lastname: Sitnikova
authors.affiliation: Ioffe Physical-Technical Institute, Politekhnicheskaya 26, 194021 St-Petersburg, Russia.
authors.forename: S G
authors.initials: SG
authors.lastname: Konnikov
authors.affiliation: Ioffe Physical-Technical Institute, Politekhnicheskaya 26, 194021 St-Petersburg, Russia.
authors.forename: A Ya
authors.initials: AY
authors.lastname: Vul'
mesh_terms: D006108:Graphite / Q000737:chemistry*; D008567:Membranes, Artificial; D046529:Microscopy, Electron, Transmission; D010087:Oxides / Q000737:chemistry*; D013499:Surface Properties
chemical_list: D008567:Membranes, Artificial; D010087:Oxides; D006108:Graphite
keywords: Graphene; Nanomaterials; TEM