Physics – Condensed Matter – Mesoscale and Nanoscale Physics
Scientific paper
2011-09-15
Physics
Condensed Matter
Mesoscale and Nanoscale Physics
17 pages, 6 figures; ACS Nano 2011
Scientific paper
10.1021/nn202293f
We report large-yield production of graphene flakes on glass by anodic bonding. Under optimum conditions, we counted several tens of flakes with lateral size around 20-30 {\mu}m and few tens of flakes with larger size. 60-70% of the flakes have negligible D peak. We show that it is possible to easily transfer the flakes by wedging technique. The transfer on silicon does not damage graphene and lowers the doping. The charge mobility of the transferred flakes on silicon is of the order of 6000 cm^2/V s (at carrier concentration of 10^12 cm^-2), which is typical for devices prepared on this substrate with exfoliated graphene.
Casiraghi Cinzia
Eckmann Axel
Klar Philipp
Moldt Thomas
Morozov Sergey V.
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