Aung Hein Htet, Qi Zhiying, Niu Yue, Guo Yao
School of Physics, Beijing Institute of Technology, Haidian, Beijing 100081, China.
Nanomaterials (Basel). 2023 May 26;13(11):1749. doi: 10.3390/nano13111749.
Flexible electronics have enormous potential for applications that are not achievable in standard electronics. In particular, important technological advances have been made in terms of their performance characteristics and potential range of applications, ranging from medical care, packaging, lighting and signage, consumer electronics, and alternative energy. In this study, we develop a novel method for fabricating flexible conductive carbon nanotube (CNT) films on various substrates. The fabricated conductive CNT films exhibited satisfactory conductivity, flexibility, and durability. The conductivity of the conductive CNT film was maintained at the same level of sheet resistance after bending cycles. The fabrication process is dry, solution-free, and convenient for mass production. Scanning electron microscopy revealed that CNTs were uniformly dispersed over the substrate. The prepared conductive CNT film was applied to collect an electrocardiogram (ECG) signal, which showed good performance compared to traditional electrodes. The conductive CNT film determined the long-term stability of the electrodes under bending or other mechanical stresses. The well-demonstrated fabrication process for flexible conductive CNT films has great potential in the field of bioelectronics.
柔性电子器件在标准电子器件无法实现的应用方面具有巨大潜力。特别是，在其性能特征和潜在应用范围方面取得了重要的技术进展，涵盖医疗保健、包装、照明和标识、消费电子以及替代能源等领域。在本研究中，我们开发了一种在各种基板上制备柔性导电碳纳米管（CNT）薄膜的新方法。所制备的导电CNT薄膜表现出令人满意的导电性、柔韧性和耐久性。导电CNT薄膜在弯曲循环后，其电导率保持在相同的表面电阻水平。该制造过程是干式的、无溶液的，并且便于大规模生产。扫描电子显微镜显示CNT均匀地分散在基板上。制备的导电CNT薄膜被应用于采集心电图（ECG）信号，与传统电极相比表现出良好的性能。导电CNT薄膜确定了电极在弯曲或其他机械应力下的长期稳定性。所展示的用于柔性导电CNT薄膜的制造工艺在生物电子学领域具有巨大潜力。
