Oriented Growth of Gold Nanowires on MoS2

Daisuke Kiriya, Yuzhi Zhou, Christopher Nelson, Mark Hettick, Surabhi Rao Madhvapathy, Kevin Chen, Peida Zhao, Mahmut Tosun, Andrew M. Minor, Daryl C. Chrzan, Ali Javey

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Abstract

Layered 2D materials serve as a new class of substrates for templated synthesis of various nanomaterials even with highly dissimilar crystal structures; thus overcoming the lattice constraints of conventional epitaxial processes. Here, molybdenum disulfide (MoS2) is used as a prototypical model substrate for oriented growth of in-plane Au nanowires (NWs) despite the nearly 8% lattice mismatch between MoS2 and Au. Au NWs on the MoS2 surface are oriented along three symmetrically equivalent directions within the substrate arising from the strong Au-S binding that templates the oriented growth. The kinetics of the growth process are explored through experiments and modeling. Strong charge transfer is observed between Au NWs and MoS2, resulting in degenerate p-doping of MoS2.

Original languageEnglish (US)
Pages (from-to)6257-6264
Number of pages8
JournalAdvanced Functional Materials
Volume25
Issue number39
DOIs
StatePublished - Oct 1 2015

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All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

Keywords

  • field effect transistors (FET)
  • nanowires
  • transition metal dichalcogenides

Cite this

Kiriya, D., Zhou, Y., Nelson, C., Hettick, M., Madhvapathy, S. R., Chen, K., Zhao, P., Tosun, M., Minor, A. M., Chrzan, D. C., & Javey, A. (2015). Oriented Growth of Gold Nanowires on MoS2. Advanced Functional Materials, 25(39), 6257-6264. https://doi.org/10.1002/adfm.201502582