Optical dynamics of energy-transfer from a CdZnO quantum well to a proximal Ag nanostructure

H. Matsui, W. Nomura, T. Yatsui, M. Ohtsu, H. Tabata

    研究成果: Contribution to journalArticle査読

    4 被引用数 (Scopus)

    抄録

    We studied photoluminescence (PL) and energy-transfer dynamics in a hybrid structure comprising a Cd0.08Zn0.92O quantum well (QW) and an Ag nanostructure. The observed PL quenching was dependent on the electronic states in the QW. Quenching occurred at low temperature where excited carriers recombined radiatively because of excitonic localization, which disappeared with increasing temperature due to delocalization of excitons. Furthermore, nanostructured Ag surfaces produced local surface plasmon (LSP) absorption that was resonant with the PL peak energy of the QW emission. These results indicate that the recombination energy of excitons transfers nonradiatively to induce LSP excitation, which was revealed using time-resolved PL measurements.

    本文言語英語
    ページ(範囲)3735-3737
    ページ数3
    ジャーナルOptics Letters
    36
    19
    DOI
    出版ステータス出版済み - 10 1 2011

    All Science Journal Classification (ASJC) codes

    • 原子分子物理学および光学

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