Graphene-templated directional growth of an inorganic nanowire

Won Chul Lee, Kwanpyo Kim, Jungwon Park, Jahyun Koo, Hu Young Jeong, Hoonkyung Lee, David A. Weitz, Alex Zettl, Shoji Takeuchi

Research output: Contribution to journalArticle

48 Citations (Scopus)

Abstract

Assembling inorganic nanomaterials on graphene1-3 is of interest in the development of nanodevices and nanocomposite materials, and the ability to align such inorganic nanomaterials on the graphene surface is expected to lead to improved functionalities4, as has previously been demonstrated with organic nanomaterials epitaxially aligned on graphitic surfaces5-10. However, because graphene is chemically inert, it is difficult to precisely assemble inorganic nanomaterials on pristine graphene2,11-16. Previous techniques2,3 based on dangling bonds of damaged graphene11,17-20, intermediate seed materials11,15,16,21,22 and vapour-phase deposition at high temperature12-14,23-15, have only formed randomly oriented or poorly aligned inorganic nanostructures. Here, we show that inorganic nanowires of gold(I) cyanide can grow directly on pristine graphene, aligning themselves with the zigzag lattice directions of the graphene. The nanowires are synthesized through a self-organized growth process in aqueous solution at room temperature, which indicates that the inorganic material spontaneously binds to the pristine graphene surface. First-principles calculations suggest that this assembly originates from lattice matching and π interaction to gold atoms. Using the synthesized nanowires as templates, we also fabricate nanostructures with controlled crystal orientations such as graphene nanoribbons with zigzag-edged directions.

Original languageEnglish
Pages (from-to)423-428
Number of pages6
JournalNature Nanotechnology
Volume10
Issue number5
DOIs
Publication statusPublished - 2015 May 7

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Atomic and Molecular Physics, and Optics
  • Biomedical Engineering
  • Materials Science(all)
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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  • Cite this

    Lee, W. C., Kim, K., Park, J., Koo, J., Jeong, H. Y., Lee, H., Weitz, D. A., Zettl, A., & Takeuchi, S. (2015). Graphene-templated directional growth of an inorganic nanowire. Nature Nanotechnology, 10(5), 423-428. https://doi.org/10.1038/nnano.2015.36