The formation of dimensionally ordered germanium nanowires withing mesoporous silicas

Kevin M Ryan, N. R.B. Coleman, T. R. Spalding, J. D. Holmes, M. A. Morris

    Research output: Contribution to journalArticlepeer-review

    Abstract

    Herein is described a supercritical fluid solution-phase method for the synthesis of high aspect ratio nanowires of true nanometre diameter within the pores of an ordered mesoporous material. Using powder X-ray diffraction (PXRD), 29Si MAS-NMR and transmission electron microscopy (TEM), it is possible to show that the quantum confined nanowires formed partially fill the pores of the mesoporous solid and are orientated so that the 〈100〉 plane of the wires runs parallel to the pore direction. We also show that the wires have an expected diamond-like structure although there is a measurable lattice expansion compared to bulk forms of germanium.

    Original languageEnglish (Ireland)
    Pages (from-to)1-6
    Number of pages6
    JournalChemical Physics Letters
    Volume343
    Issue number1-2
    DOIs
    Publication statusPublished - 27 Jul 2001

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