Ion beam synthesis of Te and Bi nanoclusters in silicon: The effect of post-implantation high frequency electromagnetic field

M. Kalitzova, A. Peeva, Velislava Ignatova, O. I. Lebedev, G. Zollo, G. Vitali

    Research outputpeer-review

    Abstract

    The post-implantation effect of high frequency electromagnetic field (HFEMF) on the microstructure and electrical properties of high dose Te + and Bi+ implanted (1 0 0) Si was investigated by cross-sectional high resolution transmission electron microscopy and four-point probe electrical measurements. Te and Bi nanoclusters (NCs) embedded in amorphized Si have been formed by ion implantation. Post-implantation treatment with HFEMF reorganizes the cluster shape and distribution by stimulation of spinodal decomposition and ordering of Te NCs to a percolation system. The effect of HFEMF on Bi NCs is assumed to be connected with the formation of electrical microcurrents causing local heating of their interfaces with the a-Si matrix. The results of electrical measurements show that the HFEMF application reduces the sheet resistance by a factor of about 6 for Te+ and about 3 for Bi+ irradiation.

    Original languageEnglish
    Pages (from-to)209-213
    Number of pages5
    JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
    Volume242
    Issue number1-2
    DOIs
    StatePublished - Jan 2006

    Funding

    FundersFunder number
    BNSF - Bulgarian National Science FundF 1310

      ASJC Scopus subject areas

      • Nuclear and High Energy Physics
      • Instrumentation

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