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首页> 外文期刊>Journal of Crystal Growth >Modeling the nucleation statistics in vapor-liquid-solid nanowires
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Modeling the nucleation statistics in vapor-liquid-solid nanowires

机译：对气液固纳米线中的成核统计建模

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摘要

The statistics of nucleation events in nanowires growing via the vapor-liquid-solid mechanism in the mononuclear regime is studied theoretically. A semi-analytical model is developed which is capable of describing the distributions of time intervals between the successive nucleation events and some other useful characteristics of nucleation statistics. Our model accounts for desorption from the droplet, which was not included in the previous studies of nucleation statistics. It is shown that the relative dispersion of nucleation distributions increases with the nanowire radius and at a higher desorption rate from the droplet, leading to the corresponding broadening of the length distribution. Using the model is also shown to fit well experimental data available on nucleation statistics in the Au-catalyzed Si and Ⅲ-Ⅴ nanowires.
机译：理论上研究了在单核状态下通过气-液-固机制生长的纳米线中成核事件的统计。建立了一个半分析模型，该模型能够描述连续成核事件之间的时间间隔分布以及成核统计数据的其他一些有用特性。我们的模型考虑了液滴的解吸，这在先前的成核统计研究中并未包括在内。结果表明，成核分布的相对分散度随着纳米线半径的增加以及从液滴的更高解吸速率而增加，从而导致长度分布的相应加宽。使用该模型还显示出很好的拟合了Au催化的Si和Ⅲ-Ⅴ纳米线中成核统计数据的实验数据。

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  • 来源
    《Journal of Crystal Growth》 |2014年第sepa1期|51-55|共5页
  • 作者

    N.V. Sibirev; M.V. Nazarenko; D.A. Zeze; V.G. Dubrovskii;

  • 作者单位

    Laboratory of Physics of Nanostructures, Saint-Petersburg Academic University, Khlopina 8/3, Saint-Petersburg 194021, Russia St. Petersburg State University, 199034, Russia;

    St. Petersburg Academic University, 194021, Russia,Ioffe Physical Technical Institute of the Russian Academy of Sciences, 194021, St. Petersburg, Russia;

    School of Engineering and Computing Sciences, Durham University, DH1 3LE, UK;

    St. Petersburg Academic University, 194021, Russia,St. Petersburg State University, 199034, Russia,Ioffe Physical Technical Institute of the Russian Academy of Sciences, 194021, St. Petersburg, Russia;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    A1. Nucleation; B1. Nanomaterials;

    机译：A1。成核;B1。纳米材料;

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