Electromagnetic-Field Enhancement and Energy Transfer Effects on Photoluminescence in Au/Poly(methyl methacrylate)/CdSe-Nanoparticle Multilayers
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概要
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We report photoluminescence (PL) and time-resolved PL spectra in Au/poly(methyl methacrylate) (PMMA)/CdSe-nanoparticle (NP) multilayers as a function of the distance between the Au film and the CdSe-NP monolayer. With a decrease in Au--CdSe distance, the PL intensity was enhanced slightly, and then it decreased dramatically. Conversely, the PL decay time decreased monotonically. These results can be explained basically by considering both the electromagnetic-field enhancement effect and the energy transfer effect of the Au localized surface plasmons.
- 2011-01-15
著者
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Yanagi Hisao
Graduate School Of Materials Science Nara Institute Of Science And Technology
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Yamamoto Aishi
Graduate School Of Materials Science Nara Institute Of Science And Technology
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Kawai Masaki
Graduate School of Materials Science, Nara Institute of Science and Technology, Ikoma, Nara 630-0192, Japan
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