| Budget Amount *help |
¥25,480,000 (Direct Cost: ¥19,600,000、Indirect Cost: ¥5,880,000)
Fiscal Year 2020: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2019: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2018: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2017: ¥13,390,000 (Direct Cost: ¥10,300,000、Indirect Cost: ¥3,090,000)
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| Outline of Final Research Achievements |
The optical absorption of a single carbon nanotube has been successfully measured by high-energy-resolution electron energy-loss spectroscopy. We have also established an analytical method to quantitatively link the electron valence excitation spectrum with the optical absorption spectrum. Then we have quantitatively clarified the modulation of optical conductivity at a local defect in a single carbon nanotube. Furthermore, we have developed a technique to investigate vibrational properties using angle-resolved electron energy loss spectroscopy and demonstrated for the first time to measure the phonon dispersion of a single layer graphene. These results were published in eight international journals including Nature, Nanoletters and Physical Review Letters, as well as in seven domestic and international invited talks.
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