Kuwahara Lab.Nagoya University
Nano Dynamics group
Energy Quantum Materials
Science Laboratory
Outline
Ultrafast measurements using advanced electron beam and their application for development of energy-saving materials
We aim to clarify the dynamic properties of local states in energy-saving materials such as plasmonic materials, optoelectronics, and artificial photosynthesis, and to improve the performance of energy-saving devices by elucidating their functions and enhancing their efficiency.
Our time-resolved electron microscopy using pulsed electron beam will open new advantages for performing structural analysis in nanometer-scale. This enables us to capture the temporal evolution of energy relaxation processes, structural phase transitions, and changes in chemical bonding states in materials and devices under real operating conditions with high dynamic range from sub-picoseconds to several seconds.
To realize these targets, we are conducting following themes.
1. Advancing ultrafast time-resolved measurement techniques
2. Establishing operando measurement synchronized with pulsed electron beams
3. Low-dose electron beam measurements using informatics approaches.
4. Extracting parameters of performance enhancement using complex measurement of photons (laser, X-ray) and electrons (multi-modal measurements).
5. Applying ultrafast operando measurements to analysis of energy-saving materials.
Through these themes, we will contribute to accelerate the development of energy-saving materials and advancing cutting-edge measurement systems.
