2012 Fiscal Year Final Research Report
Light trapping and energy transfer at metal-semiconductor heterostructures
| Project/Area Number |
23760277
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Electronic materials/Electric materials
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| Research Institution | The University of Tokyo |
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Principal Investigator |
MATSUI Hiroaki 東京大学, 大学院・工学系研究科, 講師 (80397752)
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| Project Period (FY) |
2011 – 2012
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| Keywords | 量子井戸 / 局在プラズモン / ZnO |
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| Research Abstract |
In this study, we investigated dynamic resonance between excitons in ZnO quantum wells and localized plasmons in metal nanostructures using time-resolved photoluminescent spectroscopy (TRPL). This work cleared optical interactions between localized plasmons and excitons in quantum wells. The TRPL experiments demonstrated that energy transfer between quantum wells and metals, which indicated that excitonic recombination processes were markedly affected by metal nanostructures formed on the quantum wells. A time constant and spatial correlation of energy transfer were 1.2 ns-1 and40 nm, respectively.
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