Instability and transport of metal catalyst in the growth of tapered silicon nanowires.

  title={Instability and transport of metal catalyst in the growth of tapered silicon nanowires.},
  author={Linyou Cao and Bora Garipcan and Jennifer S. Atchison and Chaoying Ni and Bahram Nabet and Jonathan E. Spanier},
  journal={Nano letters},
  volume={6 9},
During metal-catalyzed growth of tapered silicon nanowires, or silicon nanocones (SiNCs), Au-Si eutectic particles are seen to undergo significant and reproducible reductions in their diameters. The reductions are accompanied by the transfer of eutectic droplet mass to adjacent, initially metal catalyst-free substrates, producing secondary nucleation and growth of SiNCs. Remarkably, the catalyst particle diameters on the SiNCs grown on the adjacent substrates are strongly correlated with those… CONTINUE READING

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