Growth of InGaSb Alloy Semiconductor Bulk Crystals under Microgravity

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  • 微小重力環境下における混晶半導体バルク結晶成長
  • ビショウ ジュウリョク カンキョウ カ ニ オケル コンショウハンドウタイ バルク ケッショウ セイチョウ

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The review reported the microgravity experiments performed using space shuttle, drop tower and Chinese recovery satellite. In addition, the experimental plan for microgravity experiment in the International space station was introduced. From the space shuttle experiment, it was found that the space-grown sample with free melt surface was almost spherical and Marangoni convection enhanced the melt mixing. Whereas the melt mixing without free melt surface was controlled by diffusion. Formation of spherical projections on the surface of InGaSb was in-situ observed using a high speed CCD camera in the drop experiment. Microgravity studies on the dissolution and crystallization of InxGa1-xSb was carried out having the sandwich combination of GaSb(111)A/InSb/GaSb(111)B using the Chinese recoverable satellite. It was demonstrated clearly that the shape of the solid/liquid interface and composition profiles in the solution was significantly affected by gravity.

Journal

  • Hyomen Kagaku

    Hyomen Kagaku 33 (12), 687-693, 2012

    The Surface Science Society of Japan

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