利用锌微晶沸点较低易于蒸发以及形态丰富多变的特点,在微米尺度的锌晶粒介入下采用两种方式实现碳纳米管的组装.方法一:先蒸发得到一定尺度的锌微晶,然后以其为牺牲模板基于化学气相沉积生长技术实现碳纳米管的原位组装；方法二:与方法一的工艺过程相反,先在SiO2基片上气相沉积获得定向碳纳米管膜,然后以其为基板蒸发沉积锌微米晶对生长后的碳纳米管膜进行形貌调控和组装.结果表明,尽管两种组装方式的过程和原理不同,但都可获得碳纳米管的组装图案,且过程简单可控.这一技术可为碳纳米管的组装提供新途径.%Carbon nanotube (CNT) patterns have been fabricated with the assistance of Zn that possesses a low boiling point and different morphologies. Pre-patterning and post-synthesis patterning by Zn microcrystals were used to prepare the CNT patterns. The pre-patterning approach uses Zn microcrystals deposited on a SiO2 substrate as sacrificial templates for the growth of CNTs by chemical vapor deposition under a floating catalyst. The post-synthesis patterning was carried out by Zn microcrystal deposition onto pre-formed CNT films. The CNT patterns were obtained by both methods after Zn was evaporated despite their differences in process conditions. These novel approaches may become alternative routes for the assembly of CNT-based structures in a simple and controllable way.
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