10 cm x 10 cm Monolayer Graphene Film on Cu Foil with PMMA Coating

$ 415⁰⁰

Monolayer Graphene on Cu with PMMA Coating (10 cm x 10 cm)

A single-layer graphene film on a copper substrate. This product is provided with a PMMA coating on top of the Graphene in order ease the transfer process and to avoid contamination. It's a high quality product, with a great homogeneity, and it is ideal for R&D departments and universities.

SKU# ME0406

Graphene Film

· Growth method: CVD synthesis
· Appearance (color): Transparent
· Transparency: > 97%
· Coverage: > 95%
· Number of graphene layers: 1
· Thickness (theoretical): 0.345 nm
· AFM Thickness (air @RT): <1nm
· Electron Mobility on SiO₂/Si: ≈1500 cm²/V·s
· Sheet Resistance on SiO₂/Si: 450±40 Ohms/sq (1cm x1cm)
· Grain size: Up to 20 μm

Substrate Cu Foil

· Thickness: 18 μm
· Roughness: around 80 nm

PMMA Coating

· Spin coated for high homogeneity
· Thickness: 60 nm
· PMMA model: 495K, A2

Applications

Flexible batteries, Electronics, Aerospace industry, MEMS and NEMS, Microactuators, Conductive coatings, Research

Publications

Ultrathin rechargeable all-solid-state batteries based on monolayer graphene, J. Mater. Chem. A, 2013,1, 3177-3181 DOI:10.1039/C3TA01183F

Fabrication and Electrochemical Characterization of Single and Multi-Layer Graphene Anodes for Lithium-Ion Batteries, J. electrochem. Soc. 2012, vol. 159, issue 6, A752 A761

FAQs

A: PMMA is used as a protective layer, and this layer can be removed using organic solvents (acetone and IPA) or with thermal treatment. Our standard process is to remove the PMMA with solvents. As an alternative a thermal treatment can be done. This thermal treatment leaves less amount of residues, but the Raman spectra is modified due to the strain created during the treatment. Although the electrical properties of the graphene remain intact thermal treatment is avoided for not modifying Raman signal.

A: Graphene is transferred via wet process. In order to etch the copper, the graphene is protected with a sacrificial polymethyl methacrylate (PMMA) layer. A ferric chloride solution is used for etching. Once the etching is complete, the graphene is washed and transferred onto the desired substrate. Finally, the PMMA layer is removed using organic solvents.

A: The thickness is up to 200 nm but typically we use thinner PMMA

MSE Supplies guarantees the high quality and best price on the market for our graphene products. Buying graphene products from MSE Supplies will save you ~50% or more compared to prices listed by other re-sellers such as Sigma-Aldrich.