Interfacial Engineering of Semiconductor Nanocrystals and their Carrier Dynamics by Microspectroscopy
| Project/Area Number |
22350012
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Physical chemistry
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| Research Institution | Kwansei Gakuin University |
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Principal Investigator |
TAMAI Naoto 関西学院大学, 理工学部, 教授 (60163664)
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| Co-Investigator(Kenkyū-buntansha) |
OGASAWARA Kazuyoshi 関西学院大学, 理工学部, 教授 (10283631)
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| Project Period (FY) |
2010 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
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| Budget Amount *help |
¥20,020,000 (Direct Cost: ¥15,400,000、Indirect Cost: ¥4,620,000)
Fiscal Year 2012: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2011: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2010: ¥12,740,000 (Direct Cost: ¥9,800,000、Indirect Cost: ¥2,940,000)
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| Keywords | 電子状態 / 半導体ナノ構造体 / 励起子 / キャリアダイナミクス / 電子移動 / 時間分解発光分光 / フェムト秒過渡吸収分光 / 単一微粒子分光 / 励起エネルギー移動 / 化合物半導体 / 量子ドット / オージェ効果 / 逆オージェ効果 |
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| Research Abstract |
II-VI semiconductor nanocrystals (CdS，CdSe，CdTe，PbS) were prepared by colloidal synthetic methods and their interfacial properties were controlled by interfacial engineering using various capping reagents, shells, and metal nanoparticles. Carrier dynamics of these nanocrystals were examined by femtosecond transient absorption, time-resolved emission, and single particle spectroscopy. Effects of interfacial structures and phonons on single exciton dynamics and Auger recombination due to the interaction of multiple excitons were analyzed together with the temperature dependence on carrier dynamics.
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Report
(4 results)
Research Products
(108 results)
