Abstract
We used low-energy electron microscopy to observe, in situ, the growth of graphene sheets on a polycrystalline Ni substrate through surface segregation phenomena. On a flat Ni surface with roughness of less than 5 nm, macroscopic single-domain graphene grew from an extremely small number of nucleation sites. The single-domain graphene, free of rotational disorder, expanded continuously in a carpet like manner, not only over steps on the substrate surface, but also over its domain boundaries, independent of the Miller index plane. These findings might provide a breakthrough in fabricating expansive single-domain graphene sheets on polycrystalline metal surfaces.
| Original language | English |
|---|---|
| Article number | 035501 |
| Journal | Applied Physics Express |
| Volume | 5 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 2012 Mar |
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ASJC Scopus subject areas
- Engineering(all)
- Physics and Astronomy(all)
Cite this
Macroscopic single-domain graphene growth on polycrystalline nickel surface. / Odahara, Genki; Hibino, Hiroki; Nakayama, Nanao; Shimbata, Tomoyuki; Oshima, Chuhei; Otani, Shigeki; Suzuki, Masahiko; Yasue, Tsuneo; Koshikawa, Takanori.
In: Applied Physics Express, Vol. 5, No. 3, 035501, 03.2012.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Macroscopic single-domain graphene growth on polycrystalline nickel surface
AU - Odahara, Genki
AU - Hibino, Hiroki
AU - Nakayama, Nanao
AU - Shimbata, Tomoyuki
AU - Oshima, Chuhei
AU - Otani, Shigeki
AU - Suzuki, Masahiko
AU - Yasue, Tsuneo
AU - Koshikawa, Takanori
PY - 2012/3
Y1 - 2012/3
N2 - We used low-energy electron microscopy to observe, in situ, the growth of graphene sheets on a polycrystalline Ni substrate through surface segregation phenomena. On a flat Ni surface with roughness of less than 5 nm, macroscopic single-domain graphene grew from an extremely small number of nucleation sites. The single-domain graphene, free of rotational disorder, expanded continuously in a carpet like manner, not only over steps on the substrate surface, but also over its domain boundaries, independent of the Miller index plane. These findings might provide a breakthrough in fabricating expansive single-domain graphene sheets on polycrystalline metal surfaces.
AB - We used low-energy electron microscopy to observe, in situ, the growth of graphene sheets on a polycrystalline Ni substrate through surface segregation phenomena. On a flat Ni surface with roughness of less than 5 nm, macroscopic single-domain graphene grew from an extremely small number of nucleation sites. The single-domain graphene, free of rotational disorder, expanded continuously in a carpet like manner, not only over steps on the substrate surface, but also over its domain boundaries, independent of the Miller index plane. These findings might provide a breakthrough in fabricating expansive single-domain graphene sheets on polycrystalline metal surfaces.
UR - http://www.scopus.com/inward/record.url?scp=84863372772&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84863372772&partnerID=8YFLogxK
U2 - 10.1143/APEX.5.035501
DO - 10.1143/APEX.5.035501
M3 - Article
VL - 5
JO - Applied Physics Express
JF - Applied Physics Express
SN - 1882-0778
IS - 3
M1 - 035501
ER -