Carbon nanotubes (CNTs) have generated remarkable interests in a wide range of research fields due to their excellent electrical properties. However, achieving the CNTs arrangement with high quality in a short time remains a challenge. Herein we studied the in-situ assembly of CNTs based on macroscopic dielectrophoresis by using a centimeter scale electrode, which overcome the limitation of small size in traditional method for manipulating nanoparticles. Ordered CNTs chains could be obtained under the action of alternating current dielectrophoresis by optimizing the voltage and frequency. Besides, the ordered chains were able to restore immediately upon powering up after being damaged. Furthermore, a CNTs chain was prepared for conducting the wet circuit and powering a LED, and different conductive patterns on the non-woven fabric were achieved by controlling the position of the electrodes in wet environment.

碳纳米管 (CNT) 由于其优异的电学性能而在广泛的研究领域引起了极大的兴趣。然而，在短时间内实现高质量的碳纳米管排列仍然是一个挑战。在此，我们通过使用厘米级电极研究了基于宏观介电泳的 CNTs 原位组装，克服了传统纳米粒子操作方法中尺寸小的限制。通过优化电压和频率，可以在交流电介电泳作用下获得有序的碳纳米管链。此外，有序的链条在损坏后可以在通电后立即恢复。此外，还准备了一个 CNTs 链来进行湿式电路并为 LED 供电，