Improved Electrical Conductivity of Graphene Films Integrated with Metal Nanowires

Polycrystalline graphene grown by chemical vapor deposition (CVD) on metals and transferred onto arbitrary substrates has line defects and disruptions such as wrinkles, ripples, and folding that adversely affect graphene transport properties through the scattering of the charge carriers. It is found...

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Bibliographic Details
Published in:Nano letters 2012-11, Vol.12 (11), p.5679-5683
Main Authors: Kholmanov, Iskandar N, Magnuson, Carl W, Aliev, Ali E, Li, Huifeng, Zhang, Bin, Suk, Ji Won, Zhang, Li Li, Peng, Eric, Mousavi, S. Hossein, Khanikaev, Alexander B, Piner, Richard, Shvets, Gennady, Ruoff, Rodney S
Format: Article
Language:English
Subjects:
Chemical vapor deposition
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Cross-disciplinary physics: materials science
rheology
Devices
Dislocations
Electrical resistivity
Electronic structure and electrical properties of surfaces, interfaces, thin films and low-dimensional structures
Electronic transport in multilayers, nanoscale materials and structures
Exact sciences and technology
Fullerenes and related materials
diamonds, graphite
Graphene
Indium tin oxide
Materials science
Nanocrystalline materials
Nanoscale materials and structures: fabrication and characterization
Nanowires
Optoelectronic devices
Physics
Quantum wires
Ripples
Specific materials
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Summary:Polycrystalline graphene grown by chemical vapor deposition (CVD) on metals and transferred onto arbitrary substrates has line defects and disruptions such as wrinkles, ripples, and folding that adversely affect graphene transport properties through the scattering of the charge carriers. It is found that graphene assembled with metal nanowires (NWs) dramatically decreases the resistance of graphene films. Graphene/NW films with a sheet resistance comparable to that of the intrinsic resistance of graphene have been obtained and tested as a transparent electrode replacing indium tin oxide films in electrochromic (EC) devices. The successful integration of such graphene/NW films into EC devices demonstrates their potential for a wide range of optoelectronic device applications.
ISSN:1530-6984
1530-6992
DOI:10.1021/nl302870x