全学体験ゼミナール　(Synthesis of Two-Dimensional Semiconductors and Construction of Next-generation Batteries)

1. Master the Fundamentals of 2D Semiconductor Synthesis: Explain the growth mechanisms of 2D materials using methods such as CVD, MBE, and van der Waals epitaxy. Analyze how precursor chemistry, growth conditions, and substrate interactions influence material quality. Develop strategies to synthesize mono-oriented nanoribbons, heterostructures, and superlattices with tailored electronic and optical properties. 2. Acquire Advanced Characterization Skills: Utilize techniques such as Raman spectroscopy, transmission electron microscopy (TEM), atomic force microscopy (AFM), and X-ray photoelectron spectroscopy (XPS) to characterize structural and electronic properties of 2D materials. Interpret data to correlate material properties with synthesis parameters and device performance. 3. Understand the Fundamentals of Battery Science: Describe the principles of electrochemical energy storage, including thermodynamics, ion transport, and charge transfer kinetics. Compare different battery chemistries (lithium-ion, lithium-sulfur, solid-state, and metal-air) in terms of energy density, power density, and cycle life. Analyze failure mechanisms such as dendrite formation, capacity fading, and electrolyte decomposition. 4. Explore the Structure-Property Relationship Between Electrolytes and Electrodes: Link Material Structure to Electrochemical Performance: Understand how crystallinity, porosity, surface area, and defect density in electrode materials influence ion diffusion, electron transport, and interfacial stability. Study the molecular structure of electrolytes (liquid, solid-state, and gel) and how ionic conductivity is affected by ion-solvent interactions, viscosity, and ion transport pathways. Investigate Electrode-Electrolyte Interfaces: Examine solid-electrolyte interphase (SEI) formation mechanisms and their role in battery stability and efficiency. Analyze interfacial phenomena such as charge transfer resistance, double-layer capacitance, and electrochemical polarization. Advanced Material Design: Design 2D-material-based electrodes and solid electrolytes with tailored structures for optimized performance in lithium-ion, lithium-sulfur, and metal-air batteries. Explore hybrid architectures, such as composite electrodes and heterostructured electrolytes, to enhance electrochemical stability and cycling life. 5. Develop Practical Laboratory and Fabrication Skills: Perform hands-on synthesis of 2D materials and construct battery cells in a laboratory setting. Master techniques such as slurry coating, electrode assembly, solid-state electrolyte fabrication, and cell packaging. Conduct electrochemical tests (e.g., cyclic voltammetry, galvanostatic charge-discharge, electrochemical impedance spectroscopy) to evaluate the structure-property relationship. 6. Bridge the Gap Between Research and Industry: Examine case studies where structural engineering at the electrode-electrolyte interface has led to commercial breakthroughs in battery technologies. Discuss the complementary roles of Japan’s material innovation and Taiwan’s semiconductor manufacturing in advancing battery performance. Explore academic-industry partnerships, such as Joint Development Proposals (JDPs), for scalable technology development. 7. Foster Research and Innovation Skills: Design and execute independent research projects focused on optimizing the structure-property relationships in battery materials. Critically evaluate scientific literature to identify emerging trends in solid-state chemistry, interface engineering, and 2D material applications. Communicate scientific findings effectively through technical reports, presentations, and peer-reviewed discussions.

A hybrid lecture that combines short lecture series and lab work will be implemented

Evaluation based on the electrical and electrochemical performance of field effect transistors and batteries

There will be no assignments but reference materials will be given before the class. Meanwhile, lab work will be performed inside the high-temperature ovens and gloveboxes.