Singular MoS2, SiO2 and Si nanostructures-synthesis by solar ablation

Jeffrey M. Gordon, Eugene A. Katz, Daniel Feuermann, Ana Albu-Yaron, Moshe Levy, Reshef Tenne

    Research output: Contribution to journalArticlepeer-review

    38 Scopus citations

    Abstract

    Solar ablation creates the sharp radiative and temperature gradients, as well as the high-temperature annealing environment, that favor nanomaterial syntheses. Using highly concentrated sunlight, we generated fullerene-like MoS2, ranging from single-walled nanotubes and closed-cage structures to their larger multi-walled counterparts. TEM, HRTEM and EDS unambiguously established the nanostructures, some achieving fundamentally minimum sizes predicted by molecular structural theory. Irradiation of MoS2 and powdered mixtures of MoS2 + SiO2 in evacuated quartz ampoules also generated nanofibers and nanospheres of amorphous SiO2: the first production of SiO2 nanostructures purely from quartz. Also, solar ablation of MoS2 + SiO mixtures produced nanowires and nanospheres of crystalline Si.

    Original languageEnglish
    Pages (from-to)458-462
    Number of pages5
    JournalJournal of Materials Chemistry
    Volume18
    Issue number4
    DOIs
    StatePublished - 9 Jan 2008

    ASJC Scopus subject areas

    • Chemistry (all)
    • Materials Chemistry

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