Threshold barrier of carbon nanotube growth.

@article{Yuan2011ThresholdBO,
  title={Threshold barrier of carbon nanotube growth.},
  author={Qinghong Yuan and Hong -Ying Hu and Feng Ding},
  journal={Physical review letters},
  year={2011},
  volume={107 15},
  pages={156101}
}
A previously overlooked step of carbon nanotube (CNT) growth, incorporating C atoms into the CNT wall through the CNT-catalyst interface, is studied by density functional theory calculations. A significant barrier for incorporating C atoms into the CNT wall (∼2  eV for most used catalysts, Fe, Co, and Ni) is revealed and the incorporation can be the threshold step of CNT growth in most experiments. In addition, the temperature dependent CNT growth rate is calculated and our calculation… CONTINUE READING

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