碳纳米管
支化(高分子化学)
材料科学
催化作用
碳化物
纳米管
纳米技术
肖特基势垒
肖特基二极管
三元运算
化学工程
金属
复合材料
化学
光电子学
有机化学
冶金
工程类
二极管
程序设计语言
计算机科学
作者
Jun Huang,Do Hyun Kim,Raghunandan Seelaboyina,Banglore K. Rao,Dake Wang,Minseo Park,Wonbong Choi
标识
DOI:10.1016/j.diamond.2006.12.043
摘要
The catalytic effect on the Y-shaped single-walled carbon nanotubes (Y-SWNTs) branching is investigated. The formation of Y-shaped branches is found to be dependent on the catalysts composition, which can be correlated to the Gibbs free energy of metal carbide formation. Easier carbide formers, like Mo or Zr, have a strong tendency to attach to the sidewall of SWNTs, enhancing the degree of carbon nanotube branching. The electrical conductance of the Y-SWNTs demonstrated rectification characteristics at room temperature, which is attributed to the Schottky barrier formed at the junction position. The Y-SWNTs can be used as a building block for future nanoelectronic, sensor and composite.
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