Self-assembled shape- and orientation-Controlled synthesis of nanoscale Cu3Si triangles, squares, and wires

Zhang Zhou, Mun Wong Lai, Hock Guan Ong, Jiao Wang Xin, Ling Wang Jun, Jie Wang Shi, Chen Hongyu, Tao Wu*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

45 Scopus citations

Abstract

Controlling shape and orientation is important for the synthesis of functional nanomaterials. In this work, nanoscale Cu3Si triangles, squares, and wires have been grown on Si(111), (100), and (110) substrates, respectively, through a template-free Au-nanoparticle-assisted vapor transport method. The sides of nanotriangles and nanosquares and the growth direction of the nanowires are all along Si 〈110〉, giving rise to long- range ordering of the nanostructures. Au nanoparticles absorb Cu vapor and facilitate the rate-limited diffusion of Si, which is critical for the shape-controlled growth of Cu3Si. This bottom-up approach to synthesize shape- and orientation-controlled Cu3Si nanostructures might be applicable to the tailored growth of other materials.

Original languageEnglish (US)
Pages (from-to)3205-3210
Number of pages6
JournalNano Letters
Volume8
Issue number10
DOIs
StatePublished - Oct 1 2008

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering

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