A Laser Ablation Method for the Synthesis of Crystalline Semiconductor Nanowires

  • Alfredo M. Morales
    A. M. Morales, Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA 02138, USA.
  • Charles M. Lieber
    A. M. Morales, Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA 02138, USA.

抄録

<jats:p>A method combining laser ablation cluster formation and vapor-liquid-solid (VLS) growth was developed for the synthesis of semiconductor nanowires. In this process, laser ablation was used to prepare nanometer-diameter catalyst clusters that define the size of wires produced by VLS growth. This approach was used to prepare bulk quantities of uniform single-crystal silicon and germanium nanowires with diameters of 6 to 20 and 3 to 9 nanometers, respectively, and lengths ranging from 1 to 30 micrometers. Studies carried out with different conditions and catalyst materials confirmed the central details of the growth mechanism and suggest that well-established phase diagrams can be used to predict rationally catalyst materials and growth conditions for the preparation of nanowires.</jats:p>

収録刊行物

  • Science

    Science 279 (5348), 208-211, 1998-01-09

    American Association for the Advancement of Science (AAAS)

被引用文献 (109)*注記

もっと見る

キーワード

詳細情報

問題の指摘

ページトップへ