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Large-scale pattern growth of graphene films for stretchable transparent electrodes

Cited 7971 time in Web of Science Cited 8486 time in Scopus
Authors
Kim, Keun Soo; Zhao, Yue; Jang, Houk; Lee, Sang Yoon; Kim, Jong Min; Kim, Kwang S.; Ahn, Jong-Hyun; Kim, Philip; Choi, Jae-Young; Hong, Byung Hee
Issue Date
2009-02
Citation
Nature, Vol.457 No.7230, pp.706-710
Abstract
Problems associated with large- scale pattern growth of graphene constitute one of the main obstacles to using this material in device applications(1). Recently, macroscopic- scale graphene films were prepared by two- dimensional assembly of graphene sheets chemically derived from graphite crystals and graphene oxides(2,3). However, the sheet resistance of these films was found to be much larger than theoretically expected values. Here we report the direct synthesis of large- scale graphene films using chemical vapour deposition on thin nickel layers, and present two different methods of patterning the films and transferring them to arbitrary substrates. The transferred graphene films show very low sheet resistance of similar to 280 Omega per square, with 80 per cent optical transparency. At low temperatures, the monolayers transferred to silicon dioxide substrates show electron mobility greater than 3,700 cm(2) V-1 s(-1) and exhibit the half- integer quantum Hall effect(4,5), implying that the quality of graphene grown by chemical vapour deposition is as high as mechanically cleaved graphene(6). Employing the outstanding mechanical properties of graphene(7), we also demonstrate the macroscopic use of these highly conducting and transparent electrodes in flexible, stretchable, foldable electronics(8,9).
ISSN
0028-0836
URI
https://hdl.handle.net/10371/172246
DOI
https://doi.org/10.1038/nature07719
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College of Natural Sciences (자연과학대학)Dept. of Chemistry (화학부)Journal Papers (저널논문_화학부)
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