Clean Transfer of Two-Dimensional Materials: A Comprehensive Review

Area of Science:

• Materials Science
• Nanotechnology
• Surface Science

Background:

• Chemical Vapor Deposition (CVD) enables high-quality, tunable growth of two-dimensional (2D) materials.
• Transferring 2D materials to target substrates is essential for applications.
• Conventional transfer methods often introduce contamination, degrading material properties.

Purpose of the Study:

• To provide a comprehensive review of current clean transfer methods for 2D materials.
• To focus on the interactions between supporting layers and 2D materials during transfer.
• To analyze advances, limitations, challenges, and future prospects of clean transfer techniques.

Main Methods:

• Review of existing literature on clean transfer methods for 2D materials.
• Analysis of supporting layer interactions and their impact on transfer quality.
• Comparison of various clean transfer techniques, post-transfer cleaning, and cleanliness assessment.

Main Results:

• Identified key clean transfer methods and their effectiveness.
• Highlighted the critical role of supporting layer interactions in minimizing contamination.
• Compared the advantages and disadvantages of different clean transfer approaches.

Conclusions:

• Clean transfer methods are vital for realizing the full application potential of 2D materials.
• Understanding and controlling supporting layer interactions is crucial for high-quality transfers.
• Further research is needed to overcome current challenges and advance clean transfer technologies.