• 文献标题:   Strain analysis of plasma CVD graphene for roll-to-roll production by scanning transmission electron microscopy and Raman spectroscopy
  • 文献类型:   Article
  • 作  者:   KATO R, KOGA Y, MATSUISHI K, HASEGAWA M
  • 作者关键词:  
  • 出版物名称:   JAPANESE JOURNAL OF APPLIED PHYSICS
  • ISSN:   0021-4922 EI 1347-4065
  • 通讯作者地址:   Technol Res Assoc Single Wall Carbon Nanotubes TA
  • 被引频次:   1
  • DOI:   10.7567/JJAP.56.030307
  • 出版年:   2017

▎ 摘  要

The establishment of the roll-to-roll CVD is one of the key factors for realizing the commercial application of graphene. The strain in graphene synthesized by high-throughput plasma CVD using two different conditions related to growth rate and tension to the substrate is analyzed by scanning transmission electron microscopy (STEM) and Raman spectroscopy. The compressive strain generated during the growth by the tension to the substrate and the difference in thermal expansion coefficient between the graphene and the copper substrate is observed, which affects electrical conductivity. It was confirmed by STEM observation that no particularly large strain was accumulated at grain boundaries and their surroundings. (C) 2017 The Japan Society of Applied Physics.