Prof. Woo Jin Hyun
19/11/2025
China - NC R202 \ Israel - ZOOM
12:30 - Jerusalem time / 18:30 - Beijing time
Solution-processable two-dimensional (2D) materials offer a versatile route for large-volume production and scalable device fabrication through liquid-phase processing, overcoming the limitations of conventional methods such as mechanical exfoliation and chemical vapor deposition. However, efficient solution processing remains thermodynamically challenging due to surface energy mismatch between 2D materials and liquid media, which leads to low production yield and poor dispersion stability. These challenges have motivated extensive research on exploring stabilizers to improve the solution-processability of 2D materials. This talk will present recent studies on the use of polymer stabilizers in the solution processing of 2D materials, elucidating the mechanisms of their interactions with 2D materials and their influences on liquid-phase exfoliation efficiency and dispersion stability in relation to the surface energy mismatch, providing guidance for efficient solution processing and the design of printable inks for electronic device fabrication. The talk will also introduce ionogel electrolytes developed using solution-processable 2D materials as solid matrices, which exhibit unique interactions with ions and improve lithium-ion mobility and mechanical strength of ionogels, providing a platform to investigate interactions between ions and 2D material surfaces for electrochemical energy storage.