Graphene few-layer film consists of ultra-thin layers of carbon atoms that are arranged in a hexagonal honeycomb lattice. Graphene film produced via chemical vapour deposition (CVD) is polycrystalline in nature, with multiple small graphene domains growing to merge into a continuous film.

Compared to single-layer graphene, few-layer graphene has the potential to be developed into hybrid materials or heterostructures -  via intercalation of different substances into its layered structure.

General Information

CAS number	‎1034343-98-0
Chemical formula	CxHy
Molecular weight	n.a.
Bandgap	n.a.
Synonyms	Graphene, Few-layer Graphene Film
Classification / Family	2D semiconducting materials, Carbon nanomaterials, Nanomaterials, Polycyclic aromatic hydrocarbons, OLEDs, Organic photovoltaics (OPV), Organic electronics
Form	Film

Product Details

Substrate	SiO2/Si	PET	Copper Foil
Product code	M2158F11	M2159F11	M2160F50
Size	1 cm × 1 cm*	1 cm × 1 cm*	5 cm × 10 cm*
Growth Method	CVD synthesis	CVD synthesis	CVD synthesis
Appearance	Transparent	Transparent	Transparent
Purity	> 99%	> 99%	> 99%
Transparency	> 97%	> 97%	> 97%
Coverage	> 95%	> 95%	> 95%
Number of Layers	2-5	2-5	2-5
Sheet Resistance	400 ± 50 Ohms/sq	500 ± 50 Ohms/sq	450±40 Ohms/sq
Transfer method	Wet chemical transfer	Wet chemical transfer	Directly grown
Substrate Thickness	300 nm	250 µm	n.a.
MSDS

* Other sizes available: 1 cm × 2 cm, 2 cm × 2 cm or custom-made sizes, please contact us for more details.

High-quality graphene monolayer films are available on three different substrate types: SiO₂/Si, PET (polyethylene terephthalate) and copper foil. Different sizes and substrates of few-layer graphene films are also available via custom order.

• Glass (1 cm × 1 cm, 1 cm × 2 cm, 2 cm × 2 cm or custom-made sizes)
• Sapphire (1 cm × 1 cm, 1 cm × 2 cm, 2 cm × 2 cm or custom-made sizes)
• Nickel (1 cm × 1 cm, 1 cm × 2 cm, 2 cm × 2 cm or custom-made sizes)
• Silicon (1 cm × 1 cm, 1 cm × 2 cm, 2 cm × 2 cm or custom-made sizes)
• Quartz (1 cm × 1 cm, 1 cm × 2 cm, 2 cm × 2 cm or custom-made sizes)

Applications

With a unique combination of novel electronic, optical, and mechanical properties, graphene-based nanomaterials find applications in energy generation and storage. For example, they have applications in photovoltaic devices and batteries, sensors and flexible electronics, photodetectors, and biomedical applications (e.g. drug delivery, bio-imaging, and tissue engineering).

Synthesis

High quality few-layer graphene films were first grown directly  on copper foil via the chemical vapour deposition (CVD) method. The films were later transferred to the desired substrates via the wet chemical graphene-transfer process.

Usage

Monolayer graphene films are ready to use in various research purposes, such as microscopic analysis, photoluminescence and Raman spectroscopy studies. Graphene few-layer films can also be transferred to other substrates.

Pricing

Substrate	Product code	Size	Quantity (EA)	Price
SiO2/Si	M2158F11	1 cm × 1 cm	2	£165.00
SiO2/Si	M2158F11	1 cm × 1 cm	4	£254.00
PET	M2159F11	1 cm × 1 cm	2	£165.00
PET	M2159F11	1 cm × 1 cm	4	£254.00
Cu Foil	M2160F50	5 cm × 10 cm	1	£397.00

Literature and Reviews

1. Chemical vapor deposition growth of few-layer graphene for transparent conductive films, J. Pu et al., RSC Adv., 5, 44142 (2015); DOI: 10.1039/c5ra03919c.
2. Growth and properties of few-layer graphene prepared by chemical vapor deposition, H. Park et al., Carbon 48, 1088–1094 (2010) ; doi: 10.1016/j.carbon.2009.11.030.
3. Large Area, Few-Layer Graphene Films on Arbitrary Substrates by Chemical Vapor Deposition, A. Reina et al., Nano Lett., 9 (1), 30–35 (2009); DOI: 10.1021/nl801827v.
4. Large-Sized Few-Layer Graphene Enables an Ultrafast and Long-Life Aluminum-Ion Battery, L. Zhang et al., Adv. Energy Mater., 7, 1700034 (2017); DOI: 10.1002/aenm.201700034.
5. Scalable production of large quantities of defect-free few-layer graphene by shear exfoliation in liquids, K. Paton et al., Nat. Mater., 13, 624–630 (2014); DOI: 10.1038/NMAT3944.
6. Hexagonal Single Crystal Domains of Few-Layer Graphene on Copper Foils, A. Robertson et al., Nano Lett., 11 (3), 1182–1189 (2011); DOI: 10.1021/nl104142k.

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To the best of our knowledge the technical information provided here is accurate. However, Ossila assume no liability for the accuracy of this information. The values provided here are typical at the time of manufacture and may vary over time and from batch to batch.

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