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Enhanced growth of highly lattice-mismatched CdSe on GaAs substrates by molecular beam epitaxy

机译:通过分子束外延增强高度晶格失配的CdSe在GaAs衬底上的生长

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摘要

This work demonstrates the improvement of the molecular beam epitaxial growth of zinc-blende CdSe on (001) GaAs substrate with a large lattice mismatch by introducing a small amount of Te atoms. Exposing the growing surface to Te atoms changes the reflection high-energy electron diffraction pattern from spotty to streaky together with (2×1) surface reconstruction, and greatly reduces the full width at half maximum of the X-ray rocking curve and increases the integral intensity of room-temperature photoluminescence by a factor of about nine.
机译:这项工作表明通过引入少量的Te原子,在晶格失配较大的(001)GaAs衬底上,共混锌的CdSe分子束外延生长得到了改善。将生长的表面暴露在Te原子的作用下,反射高能电子衍射图样从斑点变为条纹状,再加上(2×1)表面重构,极大地减小了X射线摇摆曲线的半峰全宽并增加了积分室温光致发光的强度大约是九分之一。

著录项

  • 来源
    《Applied Surface Science》 |2013年第1期|751-754|共4页
  • 作者单位

    Department of Physics, Chung Yuan Christian University, Chung-Li 32023, Taiwan,Center for Nano-Technology, Chung Yuan Christian University, Chung-Li 32023, Taiwan,No. 200, Chung Pei Rd., Department of Physics, Chung Yuan Christian University, Chung-Li 32023, Taiwan;

    Department of Physics, Chung Yuan Christian University, Chung-Li 32023, Taiwan;

    Department of Physics, Chung Yuan Christian University, Chung-Li 32023, Taiwan;

    Department of Physics, Chung Yuan Christian University, Chung-Li 32023, Taiwan;

    Department of Physics, Chung Yuan Christian University, Chung-Li 32023, Taiwan;

    Graduate institute of Electro-Optical Engineering, Tatung University, Taipei 10452, Taiwan;

    Institute of Nuclear Energy Research, Longtan 32546, Taiwan;

    Department of Physics, Chung Yuan Christian University, Chung-Li 32023, Taiwan,Center for Nano-Technology, Chung Yuan Christian University, Chung-Li 32023, Taiwan;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    zinc-blende CdSe epilayer; molecular beam epitaxy; Te; reflection high-energy electron diffraction; x-ray diffraction; photoluminescence;

    机译:闪锌矿CdSe外延层;分子束外延;Te;反射高能电子衍射;x射线衍射;光致发光;

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