Abstract

Oxidation of graphite produces graphite oxide, which is dispersible in water as individual platelets. After deposition onto Si/SiO2 substrates, chemical reduction produces graphene sheets. Electrical conductivity measurements indicate a 10000-fold increase in conductivity after chemical reduction to graphene. Tapping mode atomic force microscopy measurements show one to two layer graphene steps. Electrodes patterned onto a reduced graphite oxide film demonstrate a field effect response when the gate voltage is varied from +15 to -15 V. Temperature-dependent conductivity indicates that the graphene-like sheets exhibit semiconducting behavior.

Keywords

GrapheneGraphiteMaterials scienceConductivityGraphene oxide paperOxideNanotechnologyGraphite oxideElectrodeGraphene nanoribbonsElectrical resistivity and conductivityLayer (electronics)Chemical engineeringComposite materialChemistryElectrical engineering

MeSH Terms

Electric ConductivityElectrodesEquipment DesignGraphiteMicroscopyAtomic ForceNanostructuresNanotechnologyOxidesSemiconductorsSiliconSilicon DioxideSurface PropertiesTemperature

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Publication Info

Year
2007
Type
article
Volume
7
Issue
11
Pages
3394-3398
Citations
1946
Access
Closed

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Cite This

Scott Gilje, Song Han, Minsheng Wang et al. (2007). A Chemical Route to Graphene for Device Applications. Nano Letters , 7 (11) , 3394-3398. https://doi.org/10.1021/nl0717715

Identifiers

DOI
10.1021/nl0717715
PMID
17944523

Data Quality

Data completeness: 86%