| Budget Amount *help |
¥17,550,000 (Direct Cost: ¥13,500,000、Indirect Cost: ¥4,050,000)
Fiscal Year 2020: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2019: ¥5,850,000 (Direct Cost: ¥4,500,000、Indirect Cost: ¥1,350,000)
Fiscal Year 2018: ¥8,320,000 (Direct Cost: ¥6,400,000、Indirect Cost: ¥1,920,000)
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| Outline of Final Research Achievements |
In this study, we performed experiments in order to understand the factors and their contributions which affect the carrier mobility in graphene grown by thermal decomposition of SiC. From the experimental results, we found that the quality of graphene on SiC have no significant difference with the other graphene growth techniques, while the defects of the SiC surface seemed to degrade the mobility. On the effect of the graphene/SiC interface, we performed the hydrogen intercalation experiments under high-pressure H_2 condition, and revealed the microscopic mechanism in the initial stage of the intercation. Based on the large-area graphene transfer technique, we also succeeded in the fabrication of the millimeter-scale twisted bilayer graphene and the observation of their electronic structure.
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