Turbostratic stacked CVD graphene for high-performance devices

We have fabricated turbostratic stacked graphene with high-transport properties by the repeated transfer of CVD monolayer graphene. The turbostratic stacked CVD graphene exhibited higher carrier mobility and conductivity than CVD monolayer graphene. The electron mobility for the three-layer turbostr...

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Bibliographic Details
Published in:Japanese Journal of Applied Physics 2018-03, Vol.57 (3), p.30311
Main Authors: Uemura, Kohei, Ikuta, Takashi, Maehashi, Kenzo
Format: Article
Language:English
Subjects:
Carrier mobility
Electron mobility
Graphene
Monolayers
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Summary:We have fabricated turbostratic stacked graphene with high-transport properties by the repeated transfer of CVD monolayer graphene. The turbostratic stacked CVD graphene exhibited higher carrier mobility and conductivity than CVD monolayer graphene. The electron mobility for the three-layer turbostratic stacked CVD graphene surpassed 10,000 cm2 V−1 s−1 at room temperature, which is five times greater than that for CVD monolayer graphene. The results indicate that the high performance is derived from maintenance of the linear band dispersion, suppression of the carrier scattering, and parallel conduction. Therefore, turbostratic stacked CVD graphene is a superior material for high-performance devices.
ISSN:0021-4922
1347-4065
DOI:10.7567/JJAP.57.030311