A method for preparing directed aligning highly organized single-walled carbon nanotubes(SWNTs) over large areas was achieved using a template-based fluidic assembly process. The effect of concentration and length of SWNTs suspension, the width and shape of PDMS channels on the alignment were also discussed. The electrical characteristics of the field effect transistors(FET) based on assembled single-walled carbon nanotubes were also inves-tigated. The p-type FET has a high On/Off ratio of 106. The developed alignment process was propitious to build SWNTs-based micro-electronics in a large scale with high sensitivity, short response time and wide temperature range.%采用以微流道模板为基础的流体法,成功制备了在大范围内具有高度取向的单壁碳纳米管(SWNTs)阵列.讨论了SWNTs的浓度与长度、PDMS模板的宽度与形状对SWNTs定向排列效果的影响.研究了由有序排列的SWNTs构建的场效应晶体管(FET)的电学性质,所制的p型FET的开关比达到106.此方法适用于在大范围内构建高灵敏度、宽温度范围、快速响应的SWNTs的微电子元器件.
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