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Self-sustained cyclic tin induced crystallization of amorphous silicon

机译：自持循环锡诱导非晶硅结晶

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摘要

Experimental evidences for a recently proposed mechanism of tin-induced crystallization of amorphous silicon are presented. The mechanism discusses a crystalline phase growth through cyclic processes of formation and decay of a super-saturated solution of silicon in molten tin at the interface with the amorphous silicon. The suggested mechanism is validated using a nonlinear dynamical model that takes into account the mass diffusion of the components of the system, heat transfer caused by latent (crystallization) heat release and amorphous silicon dissolution events, and concentration nonuniformities created by silicon crystallization. The analysis of a stationary-state solution of the model confirms the existence of periodic solutions for the partial volume of the crystalline phase and other system's variables. Possible applications of the proposed mechanism in manufacturing of cost-effective nanocrystalline silicon films for the third-generation solar cell technology are discussed.
机译：提出了最近提出的锡诱导非晶硅结晶机理的实验证据。该机制讨论了通过与非晶硅界面处的熔融锡中的硅过饱和溶液的形成和衰减的循环过程，结晶相的生长。使用非线性动力学模型验证了所建议的机制，该模型考虑了系统组件的质量扩散，由潜在（结晶）放热和非晶硅溶解事件引起的传热以及由硅结晶产生的浓度不均匀性。对模型的稳态解的分析证实了对于结晶相的部分体积和其他系统变量的周期性解的存在。讨论了所提出的机制在制造用于第三代太阳能电池技术的具有成本效益的纳米晶硅膜中的可能应用。

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  • 来源
    《Journal of Materials Research》 |2015年第20期|3116-3124|共9页
  • 作者

    Volodymyr B. Neimash; Alexander O. Goushcha; Petro Y. Shepeliavyi; Volodymyr O. Yukhymchuk; Viktor A. Danko; Viktor V. Melnyk; Andrey G. Kuzmich;

  • 作者单位

    Department of Physics of Radiation Processes, Institute of Physics, National Academy of Sciences of Ukraine, Nauky Pr., Kyiv 03028, Ukraine;

    Department of Physics of Radiation Processes, Institute of Physics, National Academy of Sciences of Ukraine, Nauky Pr., Kyiv 03028, Ukraine, 21 Nopalitos Way, Aliso Viejo, CA92656, USA;

    Institute of Semiconductor Physics, National Academy of Sciences of Ukraine, Nauky Pr., Kyiv 03028, Ukraine;

    Institute of Semiconductor Physics, National Academy of Sciences of Ukraine, Nauky Pr., Kyiv 03028, Ukraine;

    Institute of Semiconductor Physics, National Academy of Sciences of Ukraine, Nauky Pr., Kyiv 03028, Ukraine;

    Faculty of Physics, Taras Shevchenko National University of Kyiv, Kyiv 01601, Ukraine;

    Faculty of Physics, Taras Shevchenko National University of Kyiv, Kyiv 01601, Ukraine;

  • 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);
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