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首页> 外文期刊>Journal of Vacuum Science & Technology >Polarity controlled lnAs{111} films grown on Si(111)
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Polarity controlled lnAs{111} films grown on Si(111)

机译:在Si(111)上生长的极性可控lnAs {111}薄膜

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摘要

InAs heteroepitaxy on Si(111) has been studied using scanning tunneling microscopy and high-angle annular dark-field scanning transmission electron microscopy. The growth mode and polarity of the InAsjlll} films drastically change, depending on the pregrowth treatment of Si(111) surfaces. High-quality (111)A-oriented InAs films are two-dimensionally grown on the In-terminated Si(111)-(4 X 1) surface, while large three-dimensional InAs islands were formed on the Si(lll)-(7×7) and Si(lll)-(1 X 1)-As surfaces. Two-dimensional InAs(lll)B islands were obtained by supplying an As molecular beam on the In crystals formed on the As-terminated Si(111)-(1 ×1) surface. The authors also performed growth experiments of GaAs and In_(0.5)Ga_(0.5)As on In-terminated Si(111) and found that the two-dimensional growth is more promoted as the In content (i.e., lattice mismatch) is increased.
机译:使用扫描隧道显微镜和高角度环形暗场扫描透射电子显微镜研究了Si(111)上的InAs异质外延。取决于Si(111)表面的预生长处理,InAsjll}薄膜的生长模式和极性会发生巨大变化。在In-端接的Si(111)-(4 X 1)表面上二维生长高质量(111)A取向的InAs薄膜,而在Si(III)-(上形成大尺寸的三维InAs岛。 7×7)和Si(III)-(1 X 1)-As表面。通过在形成于As末端的Si(111)-(1×1)表面上形成的In晶体上提供As分子束,可以获得二维InAs(III)B岛。作者还进行了InAs端基Si(111)上GaAs和In_(0.5)Ga_(0.5)As的生长实验,发现随着In含量(即晶格失配)的增加,二维生长得到了更大的促进。

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  • 来源
    《Journal of Vacuum Science & Technology》 |2011年第3期|p.031804.1-031804.4|共4页
  • 作者单位

    National Institute for Materials Science (NIMS), Tsukuba 305-0044, Japan;

    National Institute for Materials Science (NIMS), Tsukuba 305-0044, Japan;

  • 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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  • 正文语种 eng
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