Improved Electrical Conductivity of Graphene Films Integrated with Metal Nanowires

Year: 2012

Authors: Kholmanov I., Magnuson C., Aliev A., Li H., Zhang B., Suk J., Zhang L., Peng E., Mousavi H., Khanikaev A., Piner R., Gennady G., Ruoff R.

Autors Affiliation: Department of Mechanical Engineering and the Materials Science and Engineering Program, The University of Texas at Austin, 1 University Station C2200, Austin, Texas 78712, United States;
CNR-IDASC Sensor Lab Department of Chemistry and Physics, University of Brescia, via Valotti, 9, Brescia 25133, Italy;
Alan G. MacDiarmid NanoTech Institute, University of Texas at Dallas, Richardson, Texas 75083, United States;
Department of Physics and Center for Nano and Molecular Science and Technology, The University of Texas at Austin, Austin, Texas 78712, United States

Abstract: 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.

Journal/Review: NANO LETTERS

Volume: 12 (11)      Pages from: 5679  to: 5683

More Information: This work was supported by a Tokyo Electron Ltd (TEL)-customized Semiconductor Research Corporation award (Project No.: 2009-OJ-1873-Development of graphene-based transparent conductive films for display applications). S.H.M., A.B.K., and G.S. would like to acknowledge the support from the Air Force Office of Scientific Research (FA9550-08-1-0394).
KeyWords: Graphene; nanowires; transparent conductive films; electrochromic devices;
DOI: 10.1021/nl302870x

Citations: 270
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