Monolayer Graphene Films — High-Quality CVD Graphene on Cu, PET, and Si/SiO₂

High-quality monolayer graphene films for research and industrial applications — customizable, reproducible, and rigorously characterized.

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Product Overview

Our monolayer graphene films are synthesized using advanced Chemical Vapor Deposition (CVD) techniques to ensure exceptional uniformity, purity, and electrical performance. Each graphene layer exhibits >97% optical transparency, >95% surface coverage, and high carrier mobility, making it ideal for electronics, flexible devices, biosensors, and advanced materials research.

We supply graphene on multiple substrates, including:

• Copper (Cu) foil

• PET (polyethylene terephthalate) flexible films

• Si/SiO₂ wafers (90 nm oxide)

Custom sizes, doping, and PMMA protective coatings are available to suit your specific R&D or production requirements.

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Key Features & Specifications

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Available Substrates

1. Graphene on Copper (Cu Foil)

• Substrate: Cu foil, 18 µm (roughness ~80 nm)

• Grain size: Up to 25 µm

• Electron & hole mobility (SiO₂/Si): ≈2000 cm²/V·s

• Sheet resistance: 180 ± 20 Ω/sq (1×1 cm)

• Options: With or without PMMA protective layer

• Applications: Electronics, conductive coatings, batteries, MEMS/NEMS, corrosion-resistant coatings

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2. Graphene on PET (Flexible & Transparent)

• Substrate: PET (transparent, flexible laminator pouches)

• Transfer method: Dry transfer

• Mobility: ~3000 cm²/V·s

• Sheet resistance: ~150 Ω/sq

• Appearance: Flexible, transparent film

• Features: Roll-to-roll compatible, high optical clarity, excellent flexibility

• Applications: Flexible displays, transparent conductive films, wearable sensors, flexible batteries, smart packaging

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3. Monolayer Graphene on Si/SiO₂ (Fully Covered)

• Substrate: Si/SiO₂ wafers (90 nm oxide)

• Transfer process: Polymer-assisted semi-dry transfer

• Electron mobility (FET): >2700 cm²/V·s

• Sheet resistance: 350 ± 40 Ω/sq

• Grain size: Up to 40 µm

• Wafer sizes: 4″, 6″, and 8″ available

• Resistivity: 1–10 Ω·cm (4″), up to 1–100 Ω·cm (8″)

• Surface: Polished, dielectric constant (SiO₂) = 3.9

• Applications: GFETs, photodetectors, quantum devices, biosensors, 2D material heterostructures, MEMS/NEMS fabrication

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Quality Control & Characterization

Every graphene film is produced under ISO 7 cleanroom conditions and undergoes:

• Raman spectroscopy for layer and defect verification

• X-ray diffraction (XRD) for crystal structure analysis

• SEM imaging for morphology inspection

• Four-probe electrical testing for mobility and transconductance

• Optical microscopy for surface quality

Each unit is supplied with a batch-specific datasheet, Raman spectrum, and SEM image.
Additional characterization (AFM, TEM, XPS, EDS) is available upon request.

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Customization Options

• Substrates: Cu, PET, Si/SiO₂, Ni, Quartz, or custom materials

• Protective Layers: With or without PMMA

• Doping: Nitrogen (N), Boron (B), Phosphorus (P), Gold (Au), Silver (Ag), or others upon request

• Sizes: Custom dimensions and wafer diameters (from 1 cm² to 8″)

• Functionalization: Optional surface modification for biosensor or electronic applications

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Applications

Our CVD-grown monolayer graphene supports diverse research and industrial applications:

• Flexible & transparent conductive films

• Graphene-based transistors (GFETs)

• Electrochemical & biosensors

• Optoelectronic & photonic devices

• Flexible batteries & supercapacitors

• MEMS/NEMS microactuators

• Nanopore & microfluidic systems

• Corrosion-resistant & thermal coatings

• Polymer reinforcement & composites

• Research and educational use

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Why Choose Our Graphene

• Verified monolayer coverage by Raman

• High carrier mobility and low sheet resistance

• Produced in ISO 7 Cleanroom environment

• Delivered with complete characterization data

• Fully customizable in substrate, doping, and dimensions

• Scalable production for both R&D and industry

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Storage Recommendation

To maintain graphene stability and prevent oxidation:

• Store under vacuum or inert atmosphere (Argon/Nitrogen) after opening sealed packaging.