Enhanced nickel-seeded synthesis of germanium nanowires

Xiaotang Lu, Justin T. Harris, Julián E. Villarreal, Aaron Michael Chockla, Brian A. Korgel*

*Corresponding author for this work

Research output: Contribution to journalArticle

20 Scopus citations

Abstract

Germanium (Ge) nanowires can be grown using either gold (Au) or nickel (Ni) seeds in a supercritical solvent; however, the quality and yield of the nanowires is much higher using Au seeds and diphenyl germane (DPG) as a reactant under typical reaction conditions. We find that the addition of monophenylsilane (MPS) dramatically improves the yield and quality of Ni-seeded Ge nanowires, producing straight nanowires with relatively uniform diameter and nearly 100% conversion of DPG to Ge. MPS participates in the phenyl redistribution reaction of DPG and serves as a phenyl sink that speeds DPG decomposition and increases the conversion to Ge to nearly 100%. MPS addition to Au-seeded nanowire reactions also increases the DPG conversion to Ge to nearly 100% and improves the nanowire quality at higher growth temperature.

Original languageEnglish (US)
Pages (from-to)2172-2177
Number of pages6
JournalChemistry of Materials
Volume25
Issue number10
DOIs
StatePublished - May 28 2013

Keywords

  • colloid chemistry
  • germanes
  • germanium
  • nanowires
  • SFLS
  • SFSS
  • silanes

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Materials Chemistry

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  • Cite this

    Lu, X., Harris, J. T., Villarreal, J. E., Chockla, A. M., & Korgel, B. A. (2013). Enhanced nickel-seeded synthesis of germanium nanowires. Chemistry of Materials, 25(10), 2172-2177. https://doi.org/10.1021/cm401047w