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798177

Sigma-Aldrich

Suspended monolayer graphene on TEM grid substrate (Quantifoil gold)

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About This Item

Linear Formula:
C
UNSPSC Code:
12352103
NACRES:
NA.23

form

solid

Quality Level

100

resistance

170 Ω/sq

diam. × thickness

2 mm × (theoretical) 0.345 nm , monolayer graphene film

size × distance between discs × diam.

2 μm × 4 μm × 3 mm, gold coated TEM grid

Related Categories

General description

Graphene is a unique one-atom thick, two dimensional allotrope of carbon. Several methods have been developed to synthesize graphene, such as; mechanical and chemical exfoliation, chemical vapor deposition, graphitization of silicon carbide, reduction of graphene oxides. Preparation of monolayer graphene on polyethylene terephthalate (PET) film has been reported in a study. The single layer of graphene can be transferred by clean transfer method.
Grids per package:4
Graphene Film Properties

Growth Method: CVD synthesis
Transfer Method: Clean transfer method
Size: 2 mm (TEM grid diameter)
Appearance (Color): Transparent
Transparency: >97%
Coverage: >95%
Number of graphene layers: single layer
Thickness of the lazy carbon is about 12 nm.
FET Electron Mobility on Al2O3: 2; 000 cm2/Vs
FET Electron Mobility on SiO2/Si (expected): 4; 000 cm2/Vs
Sheet Resistance: 170 Ohms/sq.
Grain size: up to 10 micrometer

Substrate TEM grid
Type: QUANTIFOIL(registered) R 2/4
Hole Size: 2 micrometers(Au grid is 300 mesh)
Space between holes: 4 micrometers
Diameter: 3 mm
Coating: Au coated

Application

Graphene film on TEM grid is useful for high resolution TEM imaging of nanoscale materials because it preserves the same focal plane over the whole grid mesh.

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

Certificates of Analysis (COA)

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