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Hydrogen-induced defects of subsurface layer in ZnO single crystal probed by a slow positron beam

机译:慢正电子束探测ZnO单晶中的氢致表面缺陷

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摘要

Hydrogen-induced defects of ZnO single crystals electrochemically charged with hydrogen have been investigated by positron beam-based Doppler broadening spectroscopy, X-ray diffraction (XRD) and optical microscopy (OM). XRD and OM results indicated that a deformation layer was formed due to hydrogen-induced structural change at the subsurface of ZnO single crystal. Slow positron beam measurements showed that this deformation layer contained many defects, such as dislocations and Zn vacancies, which led to increase of S parameter.
机译:通过基于正电子束的多普勒增宽光谱,X射线衍射(XRD)和光学显微镜(OM)研究了电化学上充有氢的ZnO单晶的氢诱导缺陷。 XRD和OM结果表明,由于氢引起的ZnO单晶下表面的结构变化,形成了变形层。缓慢的正电子束测量表明,该变形层含有许多缺陷,例如位错和Zn空位,从而导致S参数的增加。

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  • 来源
  • 会议地点 Smolenice Castle(SK)
  • 作者单位

    School of Physics and Technology, Hubei Nuclear Solid Physics Key Laboratory, Wuhan University, Wuhan 430072, P. R. China;

    State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an 710072, P. R.China;

    School of Physics and Technology, Hubei Nuclear Solid Physics Key Laboratory, Wuhan University, Wuhan 430072, P. R. China;

    School of Physics and Technology, Hubei Nuclear Solid Physics Key Laboratory, Wuhan University, Wuhan 430072, P. R. China;

    School of Physics and Technology, Hubei Nuclear Solid Physics Key Laboratory, Wuhan University, Wuhan 430072, P. R. China;

    School of Physics and Technology, Hubei Nuclear Solid Physics Key Laboratory, Wuhan University, Wuhan 430072, P. R. China;

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

    positron annihilation; ZnO; hydrogen; defect;

    机译:正电子an灭氧化锌;氢;缺陷;

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