Graphene Transferred onto SiO₂ Substrate (1 cm x 2 cm)

Graphene Transferred onto SiO₂ Substrate (1 cm x 2 cm)

CAS Number: 7782-42-5

Substrate Size: 1 cm x 2 cm

Preparation Method: Graphene film is grown on copper foils via Chemical Vapor Deposition (CVD) and transferred onto SiO₂/Si substrates with a 300 nm SiO₂ layer using a PMMA (polymethyl methacrylate) layer and wet chemical transfer techniques. Morphology Options:
Continuous Monolayer Film
Continuous Multilayer Film
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Substrate Options:
Graphene film is transferred onto SiO₂/Si substrates with a 300 nm SiO₂ layer. Custom transfer to other substrate materials is available upon request-please visit our Custom Products page or contact us for assistance.

Fundamental Properties:
Graphene film transferred onto SiO₂/Si substrates with a 300 nm SiO₂ layer retains its exceptional electronic, optical, and mechanical properties while leveraging the compatibility and unique properties of the SiO₂/Si substrate. The 300 nm SiO₂ layer provides optimal optical contrast for graphene visualization under optical microscopes. Key properties include: Electrical Properties: High electrical conductivity with carrier mobility exceeding 10,000 cm²/V-s. Typical sheet resistance <=500 Ω/sq (monolayer) and <=100 Ω/sq (multilayer). Low Raman D/G ratio confirms minimal defect density after PMMA-assisted wet transfer.
Optical Properties: Enhanced optical contrast of graphene on the 300 nm SiO₂ layer facilitates easy identification and characterization using standard optical microscopy.
Mechanical Properties: Exceptional strength and flexibility, with a tensile strength of ~130 GPa.
Thermal Properties: High thermal conductivity of graphene combined with the thermal stability of the SiO₂/Si substrate, ideal for advanced device applications.

Applications: Semiconductor Research: SiO₂/Si substrates are extensively used for graphene-based device prototyping, including transistors, sensors, and other nanoelectronic devices.
Optoelectronics: Graphene on SiO₂/Si substrates can be utilized for photodetectors, transparent conductive films, and other optoelectronic devices.
Sensors: Ideal for gas, chemical, and biological detection, benefiting from graphene’s conductivity and high surface area. Quantum and Nanoelectronics: The combination of graphene and SiO₂/Si is widely used for exploring quantum effects and fabricating nanoscale devices. Microscopy and Characterization: The 300 nm SiO₂ layer provides excellent optical contrast, enabling straightforward visualization and characterization of graphene layers under optical microscopes.