| Budget Amount *help |
¥46,020,000 (Direct Cost: ¥35,400,000、Indirect Cost: ¥10,620,000)
Fiscal Year 2023: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2022: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2021: ¥15,730,000 (Direct Cost: ¥12,100,000、Indirect Cost: ¥3,630,000)
Fiscal Year 2020: ¥23,660,000 (Direct Cost: ¥18,200,000、Indirect Cost: ¥5,460,000)
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| Outline of Final Research Achievements |
We have significantly improved the time-resolved terahertz STM system to enable imaging of the dynamics of photoexcited carriers and electrons in materials with sub-picosecond time resolution and atomic- to nanoscale spatial resolution. Using the improved system, we have successfully imaged electron dynamics in C60 organic thin films with high spatio-temporal resolution and captured movies of electrons moving around in nanoscale regions on the surface on a picosecond time scale. We also succeeded in observing the dynamics of excitons in two-dimensional layered semiconductors, and showed that this technique can be extended to ultrafast dynamics in various materials.
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