Inkjet printing of 2D layered materials

Area of Science:

• Materials Science
• Nanotechnology
• Electronics Engineering

Background:

• Inkjet printing of 2D layered materials (e.g., graphene, MoS2) is crucial for emerging electronics.
• Challenges include poor rheology, low concentrations, aggregation, and solvent toxicity, hindering manufacturing.
• These issues limit the efficiency and quality of printed electronic devices.

Purpose of the Study:

• To introduce a novel and versatile technology for overcoming critical challenges in 2D material inkjet printing.
• To demonstrate a method that improves material processing for high-quality printed electronics.
• To enable efficient and reliable manufacturing of devices using inkjet-printed 2D materials.

Main Methods:

• A distillation-assisted solvent exchange technique was developed.
• This method addresses issues of rheology, concentration, aggregation, and solvent toxicity.
• The process was applied to prepare inks of 2D layered materials for inkjet printing.

Main Results:

• The developed method significantly improved the jetting performance of 2D material inks.
• Ideal printing patterns with high fidelity were achieved.
• Demonstrated the potential for various promising applications in emerging electronics.

Conclusions:

• Distillation-assisted solvent exchange is an effective strategy for 2D material inkjet printing.
• This technology overcomes key manufacturing challenges, enhancing efficiency and quality.
• The approach facilitates the development of advanced electronic devices utilizing inkjet-printed 2D materials.