Step-Flow Kinetics in Nanowire Growth

作者:Wen C Y*; Tersoff J; Reuter M C; Stach E A; Ross F M
来源:Physical Review Letters, 2010, 105(19): 195502.
DOI:10.1103/PhysRevLett.105.195502

摘要

Nanowire growth occurs by step flow at the wire-catalyst interface, with strikingly different step-flow kinetics for solid versus liquid catalysts. Here we report quantitative in situ measurements of step flow together with a kinetic model that reproduces the behavior. This allows us to identify the key parameters controlling step-flow growth, evaluate changes in the catalyst composition during growth, and identify the most favorable conditions for growing abrupt heterojunctions in nanowires.

  • 出版日期2010-11-5
  • 单位IBM