| Time：1130911 (Wed.) 14:20~16:20 Speaker：Prof.陳怡誠(Chen, Yi-Cheng) 國立清華大學材料科學工程學系/Department of Materials Science and Engineering, National Tsing Hua University Title：Exploration of Functional Materials: Film Growth on 2D Surfaces and Intercalation within Layered Structures Abstract： Controlling the dimensionality in atomic structures can significantly modify the properties of materials. This study focuses on expanding the functional properties of muscovite substrates through intercalation, utilizing its transparent, insulating nature and 2D layered structure. Muscovite is an abundant, cost-effective mineral known for its optical transparency, mechanical flexibility, thermal stability, and environmental resistance. Its 2D van der Waals structure allows for high-quality heteroepitaxy, overcoming lattice mismatch issues and enabling the creation of strain-free functional films. However, the diamagnetic and insulating properties of muscovite limit its application in electronic devices. The van der Waals gap between (0.3 nm) of muscovite layers offers a unique 2D cavity for material growth. Here, we propose intercalating functional materials followed by heat treatment to form new 2D materials within this confined space. Intercalation, the process of inserting foreign substances between layers of 2D materials, can modify the properties of muscovite without destroying its layered structure. This process can significantly enhance the physical and chemical properties of muscovite, including altering the electronic structure, enhancing electron mobility, and controlling magnetic, optical, electronic, conductive, mechanical, catalytic, and energy storage properties. The resulting atomic composites are expected to exhibit properties can be modulated and distinct from bare muscovite due to the interplay of static pressure from intercalation and dynamic bending. This method demonstrates the potential of muscovite intercalation as a universal platform for studying functional materials within a confined 2D cavity, paving the way for new substrates in flexible electronics and modern physics exploration. Place：B101, Gongguan Campus, NTNU |
