| Budget Amount *help |
¥41,470,000 (Direct Cost: ¥31,900,000、Indirect Cost: ¥9,570,000)
Fiscal Year 2019: ¥6,890,000 (Direct Cost: ¥5,300,000、Indirect Cost: ¥1,590,000)
Fiscal Year 2018: ¥6,890,000 (Direct Cost: ¥5,300,000、Indirect Cost: ¥1,590,000)
Fiscal Year 2017: ¥8,840,000 (Direct Cost: ¥6,800,000、Indirect Cost: ¥2,040,000)
Fiscal Year 2016: ¥9,880,000 (Direct Cost: ¥7,600,000、Indirect Cost: ¥2,280,000)
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| Outline of Final Research Achievements |
Plasmon-induced charge separation (PICS) at the interface between plasmonic nanoparticles and semiconductors, which we have reported for the first time, has been widely studied in the world, but its mechanisms have not yet been elucidated completely. In this study, we investigated the oxidation process involved in PICS, and found that some oxidation reactions occur on the basis of the hole ejection mechanism in the most typical PICS system, which consists of gold or silver nanoparticles and titania. Therefore, PICS allows for site-selective oxidation reactions. We have applied it to fabricate chiral plasmonic nanostructures exhibiting circular dichroism and achieved the first control of their handedness by right or left circularly polarized light. PICS with plasmonic compound nanostructures was also achieved for the first time, by using a molybdenum oxide nanostructure.
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