| Budget Amount *help |
¥19,760,000 (Direct Cost: ¥15,200,000、Indirect Cost: ¥4,560,000)
Fiscal Year 2018: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2017: ¥5,850,000 (Direct Cost: ¥4,500,000、Indirect Cost: ¥1,350,000)
Fiscal Year 2016: ¥10,920,000 (Direct Cost: ¥8,400,000、Indirect Cost: ¥2,520,000)
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| Outline of Final Research Achievements |
In this work, we have focused on development of a crystal growth method for high-quality atomic layers and atomic-layer heterostructures. We have investigated optical responses of atomic layers and heterostructures and found (1) small-fwhm excitonic emissions, (2) formation of biexcitons with small excitation power density, (3) formation of various interlayer excitons composed of electrons and holes locate at different valleys. In addition, we have observed valley-polarized photoluminescence from both atomic layers and heterostructures, which clearly demonstrates that present samples gives versatile playground for investigation of valley-oriented phenomena and valley-photonic devices.
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