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Stability of Graphene Growth on CuNi Thin Films in a High-Temperature Hydrogen/Oxygen Atmosphere

机译：高温氢气/氧气气氛中石墨烯生长的稳定性

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摘要

Growing graphene on metal thin films, especially Cu or CuNi thin films, has become an efficient way to obtain large single-crystal graphene. Most studies focus on the epitaxial growth of graphene, but the effects of defects, such as wrinkles and point defects, on graphene stability are rarely explored. In this work, we mainly focus on the distribution of wrinkles and point defects to study the stability of graphene growth on CuNi thin films. It is found that graphene grown on a CuNi thin film shows the same peripheral etching phenomena other than central etching holes or wrinkle stripes whether it is cooled or not. Raman and TEM studies show that the graphene has high quality. We believe that graphene grown on a CuNi thin film has few wrinkles and point defects. Thus, the results show that graphene grown on a CuNi thin film is more stable than graphene grown on a Cu foil in a high-temperature hydrogen and air environment.
机译：在金属薄膜上生长石墨烯，特别是Cu或Cuni薄膜，已成为获得大型单晶石墨烯的有效方法。 大多数研究专注于石墨烯的外延生长，但很少探索缺陷，例如皱纹和点缺陷的缺陷的影响。 在这项工作中，我们主要关注皱纹和点缺陷的分布，研究石墨烯生长对CUNI薄膜的稳定性。 发现在CUNI薄膜上生长的石墨烯显示出与中央蚀刻孔或皱纹条纹以外的外围蚀刻现象是否被冷却。 拉曼和TEM研究表明，石墨烯具有高质量。 我们认为，在CUNI薄膜上生长的石墨烯有很少的皱纹和点缺陷。 因此，结果表明，在高温氢气和空气环境中，在CUNI薄膜上生长的石墨烯比在Cu箔上生长的石墨烯更稳定。

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  • 来源
    《Crystal growth & design》 |2020年第2期|共7页
  • 作者

    Liang Yijian; Zhang Yanhui; Chen Zhiying; Hu Shike; Kang He; Li Jing; Sui Yanping; Yu Guanghui; Peng Songang; Jin Zhi; Liu Xinyu;

  • 作者单位

    Chinese Acad Sci Shanghai Inst Microsyst &

    Informat Technol Shanghai Peoples R China;

    Chinese Acad Sci Shanghai Inst Microsyst &

    Informat Technol Shanghai Peoples R China;

    Chinese Acad Sci Shanghai Inst Microsyst &

    Informat Technol Shanghai Peoples R China;

    Chinese Acad Sci Shanghai Inst Microsyst &

    Informat Technol Shanghai Peoples R China;

    Chinese Acad Sci Shanghai Inst Microsyst &

    Informat Technol Shanghai Peoples R China;

    Chinese Acad Sci Shanghai Inst Microsyst &

    Informat Technol Shanghai Peoples R China;

    Chinese Acad Sci Shanghai Inst Microsyst &

    Informat Technol Shanghai Peoples R China;

    Chinese Acad Sci Shanghai Inst Microsyst &

    Informat Technol Shanghai Peoples R China;

    Chinese Acad Sci Inst Microelect Beijing Peoples R China;

    Chinese Acad Sci Inst Microelect Beijing Peoples R China;

    Chinese Acad Sci Inst Microelect Beijing Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 晶体学;
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