It is found whether the carbon nanotubes could be orientationally grown at low temperature depended on the plasma power and carbon nanotubes could not be grown if the pressure was too low.

• 结合有关理论分析,结果表明,当等离子体功率较大时,等离子体形成的强电场对催化剂颗粒的作用导致了碳纳米管的定向生长;