A Chemical Route to Graphene for Device Applications

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...

Full description

Saved in:
Bibliographic Details
Published in:Nano letters 2007-11, Vol.7 (11), p.3394-3398
Main Authors: Gilje, Scott, Han, Song, Wang, Minsheng, Wang, Kang L, Kaner, Richard B
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Cross-disciplinary physics: materials science
rheology
Electric Conductivity
Electrodes
Electronic structure and electrical properties of surfaces, interfaces, thin films and low-dimensional structures
Electronic transport in multilayers, nanoscale materials and structures
Equipment Design
Exact sciences and technology
Fullerenes and related materials
diamonds, graphite
Graphite - chemistry
Materials science
Microscopy, Atomic Force
Nanostructures - chemistry
Nanotechnology - methods
Oxides - chemistry
Physics
Semiconductors
Silicon - chemistry
Silicon Dioxide - chemistry
Specific materials
Surface Properties
Temperature
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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.
ISSN:1530-6984
1530-6992
DOI:10.1021/nl0717715