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773700

Sigma-Aldrich

Graphene, monolayer film

1 cm x 1 cm on SiO2/Si substrate, avg. no. of layers, 1

Synonym(s):

Single Layer Graphene Sheet

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About This Item

UNSPSC Code:
12352103
NACRES:
NA.23

product name

Monolayer graphene film, 1 cm x 1 cm on SiO2/Si substrate, avg. no. of layers, 1

Quality Level

100

form

film

feature

avg. no. of layers 1

resistance

600 Ω/sq

L × W × thickness

1 cm × 1 cm × (theoretical) 0.345 nm, monolayer graphene film
1 cm × 1 cm × 525 μm, SiO2/Si substrate

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General description

Graphene film
Growth Method: CVD synthesis
Transfer Method: Clean transfer method
Quality Control: Optical Microscopy & Raman checked
Size: 1 cm x 1 cm
Appearance (Color): Transparent
Transparency: >97%
Appearance (Form): Film
Coverage: >95%
Number of graphene layers: 1
Thickness (theoretical): 0.345 nm
FET Electron Mobility on Al2O3: 2; 000 cm2/V·s
FET Electron Mobility on SiO2/Si (expected): 4; 000 cm2/V·s
Sheet Resistance: 600 Ohms/sq.
Grain size: Up to 10 μm

Substrate
Size: 1.25 cm x 1.25 cm
Type/Dopant: P/B
Orientation: 100
Growth Method: CZ
Resistivity: 1-30 ohmcm
Thickness: 525 +/- 25μm
Front Surface: polished
Back Surface: etched
Coating: 300 nm thermal oxide on both wafer sides
Graphene is a unique one atom thick, two dimensional allotrope of carbon. Among all the synthesis technique, chemical vapor deposition of graphene on various substrates is the most promising route for the large scale production of good quality graphene. Graphene deposited on dielectric surface may exhibit better performance in graphene based FETs. Graphene deposited on SiO2/Si may be deposited by direct chemical vapor deposition via a sacrificial copper film.
Sheet resistance measurements were performed in a vacuum chamber to ensure their reproducibility, within a four-point configuration (van der Pauw geometry, silver paint contact) with injection of currents above 10uA

Application

Webinar: Graphene-Based Nanomaterials for Versatile Biosensors

pictograms

Health hazardExclamation mark
GHS08,GHS07

signalword

Danger

Hazard Classifications

Eye Irrit. 2 - STOT RE 1 Inhalation - STOT SE 3

target_organs

Lungs, Respiratory system

Storage Class

6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

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Certificates of Analysis (COA)

Lot/Batch Number
MKCQ4810
MKCP4374
MKCN1739
MKCM4098
MKCF9891

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Graphene

Xuesong Li et al.
Nano letters, 9(12), 4359-4363 (2009-10-23)
Graphene, a two-dimensional monolayer of sp(2)-bonded carbon atoms, has been attracting great interest due to its unique transport properties. One of the promising applications of graphene is as a transparent conductive electrode owing to its high optical transmittance and conductivity.
Direct Chemical Vapor Deposition of Graphene on Dielectric Surfaces
Ismach A, et al.
Nano Letters, 10, 1542?1548-1542?1548 (2010)
Optical nano-imaging of gate-tunable graphene plasmons
Nature (2012)
Weak mismatch epitaxy and structural feedback in graphene growth on copper foil.
Wilson NR, et al.
Nano Research, 6(2), 99-112 null
Functionalized CVD monolayer graphene for label-free impedimetric biosensing
Eissa S, et al.
Nano Research, 8(5), 1698-1709 null
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