High quality 2D crystals made by anodic bonding: a general technique for layered materials

Area of Science:

• Materials Science
• Nanotechnology
• Surface Science

Background:

• Anodic bonding is a proven technique for high-quality graphene fabrication.
• Existing methods for nanolayer fabrication have limitations in scale and ease of use.

Purpose of the Study:

• To extend anodic bonding for fabricating high-quality nanolayers from diverse layered materials.
• To report optimal fabrication parameters for nine different layered materials.

Main Methods:

• Utilizing a simple apparatus for anodic bonding.
• Careful control and optimization of fabrication parameters.
• Testing and characterization of resulting nanolayers.

Main Results:

• Successful fabrication of high-quality nanolayers from nine layered materials.
• Obtained 2D layers are larger, with higher yields, and easily transferable compared to microcleavage methods.
• Produced clean samples with good optical contrast on glass substrates for easy identification.

Conclusions:

• Anodic bonding is a versatile and efficient technique for laboratory-scale nanolayer fabrication from various layered materials.
• The optimized parameters ensure high quality, large area, and easy transferability of nanolayers.
• This method presents a technique of choice for researchers working with layered materials.