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Frame assisted H2O electrolysis induced H2 bubbling transfer of large area graphene grown by chemical vapor deposition on Cu
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10.1063/1.4775583
/content/aip/journal/apl/102/2/10.1063/1.4775583
http://aip.metastore.ingenta.com/content/aip/journal/apl/102/2/10.1063/1.4775583
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Figures

Image of FIG. 1.
FIG. 1.

Schematic illustration of the frame assisted bubbling transfer. (a) Deposition of the PET frame on top of the sample and etching of the graphene at the unprotected side of Cu with O2 plasma. (b) H2 bubbling separation of the frame/PMMA/graphene from the Cu foil induced by H2O electrolysis. (c) Frame removal after transfer.

Image of FIG. 2.
FIG. 2.

Images of different stages in the graphene transfer technique. (a) Frame on the PMMA/graphene/Cu complex. (b) Detached frame/PMMA/graphene dipping into water for cleaning. (c) Simultaneous transfer to 4 target substrates ( ). (d) Optical microscope image of the transferred graphene film on 300 nm . Video of the bubbling transfer is available online. 24

Image of FIG. 3.
FIG. 3.

Device resistance as a function of the gate voltage VG for field effect mobility measurement. In the inset, an electron diffraction pattern of the monolayer graphene film is shown.

Image of FIG. 4.
FIG. 4.

Optical characteristics of the as-transferred graphene. (a) Raman spectrum (514.5 nm) of the graphene transferred to SiO2/Si. (b) Optical transmittance of a single layer and a bilayer graphene film transferred to glass substrates. The transmittance for monolayer and bilayer graphene is extracted from the measured values by subtracting the substrate absorption. Gr denotes graphene.

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/content/aip/journal/apl/102/2/10.1063/1.4775583
2013-01-15
2014-04-16
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Frame assisted H2O electrolysis induced H2 bubbling transfer of large area graphene grown by chemical vapor deposition on Cu
http://aip.metastore.ingenta.com/content/aip/journal/apl/102/2/10.1063/1.4775583
10.1063/1.4775583
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