Graphene Transferred onto Sapphire Substrate (1 cm × 1 cm)

Description

Graphene Transferred onto Sapphire Substrate (1 cm × 1 cm)

CAS Number: 7782-42-5

Substrate Size: 1 cm × 1 cm

Preparation Method: Graphene film is grown on copper foils via Chemical Vapor Deposition (CVD) and transferred onto sapphire substrates using a PMMA (polymethyl methacrylate) layer and wet chemical transfer techniques.

Morphology Options:
Continuous Monolayer Film
Continuous Multilayer Film
For specific requirements, please contact us directly.

Substrate Options:
Graphene film is transferred onto sapphire substrates. Custom transfer to other substrate materials is available upon request—please visit our Custom Products page or contact us for assistance.

Fundamental Properties:
Graphene transferred onto sapphire substrates retains its exceptional electronic, optical, and mechanical properties while benefiting from the unique characteristics of sapphire, such as excellent thermal stability, high transparency, and electrical insulation. The PMMA-assisted transfer ensures high-quality, uniform graphene films with minimal defects, making it suitable for advanced photonic, optoelectronic, and high-temperature applications.
Key properties include:
Electrical Properties (Graphene): High electrical conductivity with carrier mobility exceeding 10,000 cm²/V·s.
Optical Transparency: Graphene on sapphire transmits ~97.7% of visible light, enabling its use in transparent and optoelectronic devices.
Mechanical Properties: Exceptional strength and flexibility, with a tensile strength of ~130 GPa, making it robust for various applications.
Thermal Properties: High thermal conductivity of graphene combined with the excellent thermal stability of sapphire makes it ideal for high-temperature and heat-dissipating applications.

Applications:
Optoelectronics: Ideal for transparent conductive films in displays, photodetectors, and photovoltaic devices, leveraging the sapphire substrate’s optical clarity and thermal stability.
Sensors: Graphene on sapphire is suitable for gas, chemical, and biological sensing applications due to its conductivity and high surface area.
High-Temperature Electronics: The thermal stability of sapphire substrates makes them suitable for graphene-based devices operating in high-temperature environments.
Photonics: The combination of graphene’s unique optical properties and sapphire’s transparency enables its use in advanced photonic devices and waveguides.
Energy Applications: Utilized in transparent electrodes for energy storage devices, such as supercapacitors and batteries, with added stability from the sapphire substrate.