Low-temperature growth and direct transfer of graphene-graphitic carbon films on flexible plastic substrates

Yong Jin Kim, Sang Jin Kim, Myung Hee Jung, Kwang Yeol Choi, Sukang Bae, Seoung Ki Lee, Youngbin Lee, Dolly Shin, Bora Lee, Huiyoun Shin, Myungshin Choi, Kyuho Park, Jong Hyun Ahn, Byung Hee Hong

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Abstract

We demonstrate low-temperature growth and direct transfer of graphene-graphitic carbon films (G-GC) onto plastic substrates without the use of supporting materials. In this approach, G-GC films were synthesized on copper layers by using inductively coupled plasma enhanced chemical vapor deposition, enabling the growth of few-layer graphene (G) on top of Cu and the additional growth of graphitic carbon (GC) films above the graphene layer at temperatures as low as 300°C. The patterned G-GC films are not easily damaged or detached from the polymer substrates during the wet etching and transfer process because of the van der Waals forces and π-π interactions between the films and the substrates. Raman spectroscopy reveals the two-dimensional hexagonal lattice of carbon atoms and the crystallinity of the G-GC films. The optical transparency and sheet resistance of the G-GC films are controlled by modulating the film thickness. Strain sensors are successfully fabricated on plastic substrates, and their resistance modulation at different strains is investigated.

Original languageEnglish
Article number344016
JournalNanotechnology
Volume23
Issue number34
DOIs
Publication statusPublished - 2012 Aug 31

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering
  • Electrical and Electronic Engineering

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    Kim, Y. J., Kim, S. J., Jung, M. H., Choi, K. Y., Bae, S., Lee, S. K., Lee, Y., Shin, D., Lee, B., Shin, H., Choi, M., Park, K., Ahn, J. H., & Hong, B. H. (2012). Low-temperature growth and direct transfer of graphene-graphitic carbon films on flexible plastic substrates. Nanotechnology, 23(34), [344016]. https://doi.org/10.1088/0957-4484/23/34/344016