| Budget Amount *help |
¥43,940,000 (Direct Cost: ¥33,800,000、Indirect Cost: ¥10,140,000)
Fiscal Year 2015: ¥12,350,000 (Direct Cost: ¥9,500,000、Indirect Cost: ¥2,850,000)
Fiscal Year 2014: ¥14,430,000 (Direct Cost: ¥11,100,000、Indirect Cost: ¥3,330,000)
Fiscal Year 2013: ¥17,160,000 (Direct Cost: ¥13,200,000、Indirect Cost: ¥3,960,000)
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| Outline of Final Research Achievements |
We studied the optical properties of functional semiconductor nanomaterials such as carbon nanotubes, hetero-structured nanoparticles, and closed-packed nanoparticle films. By developing and applying techniques based on microscopy and pump-probe spectroscopy, we clarified the optical phenomena associated with multiple excitons, carriers, and their combinations. The mechanisms of Auger recombination, multiple exciton generation, and luminescence blinking were discussed based on the recombination dynamics of biexcitons and charged excitons. We elucidated that the dynamics of multiple excitons and carriers are strongly influenced by the structure of the nanomaterial.
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