Optical properties of silicon nanocrystals covered by periodic array of gold nanowires

S. A. Dyakov, D. M. Zhigunov, A. Marinins, M. R. Shcherbakov, A. A. Fedyanin, A. S. Vorontsov, P. K. Kashkarov, S. Popov, M. Qiu, M. Zacharias, S. G. Tikhodeev, N. A. Gippius

    Research output: Contribution to journalArticlepeer-review

    14 Citations (Scopus)

    Abstract

    Extinction and photoluminescence spectra are experimentally and theoretically studied for a periodic array of gold nanowires deposited on top of a dielectric substrate containing silicon nanocrystals. Quasiguided modes are observed in the substrate resulting in modification of optical properties of silicon nanocrystals. Our calculations of extinction and photoluminescence spectra are in good agreement with experimental results. The periodicity provides a powerful tool for achieving a high photoluminescence outcoupling efficiency of silicon nanocrystals.

    Original languageEnglish
    Article number205413
    JournalPhysical Review B
    Volume93
    Issue number20
    DOIs
    Publication statusPublished - 6 May 2016

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