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Growth optimization of double-walled carbon nanotubes yielding precisely designed structures

机译:双层碳纳米管的生长优化产生精确设计的结构

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We demonstrate the formation of precisely designed double-walled carbon nanotube (DWNT) structures via growth optimization of thermal chemical vapor deposition. Effects of various growth factors such as different catalyst film- and buffer layer-thicknesses, flow rates and growth time were investigated to produce desired DWNT structures. We used acetylene as the main feedstock and fabricated site selective DWNT vertical structures through a catalyst patterning process. The DWNT structures will be applicable to areas where mechanical stability with thin diameter is required, such as in nanotube-based composites, electron emission devices, heat release components in electric devices and nanoelectromechanical systems.
机译:通过热化学气相沉积的生长优化,我们演示了精确设计的双壁碳纳米管(DWNT)结构的形成。研究了各种生长因子的影响,例如不同的催化剂膜和缓冲层的厚度,流速和生长时间,以产生所需的DWNT结构。我们使用乙炔作为主要原料,并通过催化剂构图工艺制造了现场选择性DWNT垂直结构。 DWNT结构将适用于要求具有小直径机械稳定性的领域,例如纳米管基复合材料,电子发射器件,电子器件和纳米机电系统中的放热组件。

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