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Direct growth of graphene nanopatches on graphene sheets for highly conductive thin film applications
- Authors
- Song, Wooseok; Kim, Ki Woong; Chang, Sung-Jin; Park, Tae Jung; Kim, Sung Ho; Jung, Min Wook; Lee, Geonhee; Myung, Sung; Lim, Jongsun; Lee, Sun Suk; An, Ki-Seok
- Issue Date
- Jan-2015
- Publisher
- ROYAL SOC CHEMISTRY
- Citation
- JOURNAL OF MATERIALS CHEMISTRY C, v.3, no.4, pp 725 - 728
- Pages
- 4
- Journal Title
- JOURNAL OF MATERIALS CHEMISTRY C
- Volume
- 3
- Number
- 4
- Start Page
- 725
- End Page
- 728
- ISSN
- 2050-7526
2050-7534
- Abstract
- Graphene nanopatches (GNs) on graphene films grown by chemical vapor deposition (CVD) were synthesized by Ni nanoparticle assembly and subsequent CVD growth to enhance their electrical conductivity. As a result, the sheet resistance of the hexagonally shaped GN-assembled graphene films decreased from 681.7 + 11.2 to 527.2 + 47.0 Omega sq(-1) with 97.9% transparency. This improvement in electrical conductivity was the result of p-type doping of the GNs on graphene films and the generation of additional charge carrier conducting paths to diminish defect scattering, which was a result of the enhanced extracted-hole mobility of the GN-assembled graphene films.
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