Professor

Yukio Takahashi

Associate Professor

Kozo Shinoda

Assistant Professor

Nozomu Ishiguro

Integration of synchrotron radiation measurement and informatics for visualization of material functions

Most of the practical functional materials are heterogeneous and complex systems with spatial hierarchical structures ranging from atoms to millimeters, and it is important to elucidate the correlation between microstructure and function at the mesoscale when designing and developing new materials. By using imaging and spectroscopic techniques using synchrotron radiation, one can analyze the structure, elements, and electronic state of practical functional materials from various perspectives. In particular, coherent diffraction imaging using synchrotron radiation is attracting attention as a next-generation visualization tool to realize structural visualization at the nanoscale. In addition, with the recent development of data science, it is becoming more feasible to extract characteristic information on structure-function relationships from the information of elements and electronic states that are intricately distributed in three-dimensional space. In our laboratory, we aim to establish a common platform for visualizing the functions of practical materials by developing next-generation synchrotron radiation imaging and spectroscopy methods and utilizing data scientific approach.

Themes

• Nanostructure/chemical state Imaging of functional materials by X-ray spectroscopic ptychography
• Development of tender X-ray ptychography and its application to chemical state imaging of sulfur compounds
• Development of single-shot coherent diffraction imaging method and its application to dynamic imaging
• Multi-scale chemical state imaging of battery materials by operando full-field imaging-XAFS method
• Development of phase retrieval image reconstruction method utilizing data scientific approach