Multi-walled carbon nanotubes (MWCNTs) can be aligned along electric field lines between transparent electrodes to form a conductive network. In this work, MWCNTs were successfully deposited across indium tin oxide (ITO) electrodes using dielectrophoretic (DEP) force. For the first time, the deposition of MWCNTs across ITO electrodes separated by a distance of 50 μm is demonstrated to form an aligned network. The role of the AC signal amplitude, frequency, and duration is investigated experimentally. We found that the alignment was improved as the frequency increases (>10⁵ Hz), while the minimum amplitude per the unit distance to deposit MWCNTs across ITO electrodes was 0.2 V/μm. The deposition process is observed in real-time using optical microscopy, and the aligned MWCNTs are observed with FeSEM spectroscopy. The study also investigates the resistivity, density and length of the aligned MWCNTs as a function of time. The deposition of MWCNTs across transparent electrodes using a room temperature method that requires a simple setup has potential use in future transparent electronics.

多壁碳纳米管 (MWCNT) 可以沿透明电极之间的电场线排列以形成导电网络。在这项工作中，使用介电泳 (DEP) 力成功地将 MWCNT 沉积在氧化铟锡 (ITO) 电极上。首次证明了在相距 50 μm 的 ITO 电极上沉积多壁碳纳米管以形成对齐的网络。通过实验研究了交流信号幅度、频率和持续时间的作用。我们发现随着频率的增加（>10 ⁵ Hz)，而在 ITO 电极上沉积 MWCNT 的每单位距离的最小振幅为 0.2 V/μm。使用光学显微镜实时观察沉积过程，并使用 FeSEM 光谱观察对齐的 MWCNT。该研究还调查了对齐的 MWCNT 的电阻率、密度和长度随时间的变化。使用需要简单设置的室温方法在透明电极上沉积多壁碳纳米管在未来的透明电子产品中具有潜在用途。