Lee Chankyoung, Park Jaewoo, Choi Dooho
Department of Semiconductor Engineering, Gachon University, Seongnam 13120, Republic of Korea.
Materials (Basel). 2024 Nov 12;17(22):5514. doi: 10.3390/ma17225514.
This study addresses the fabrication of flexible, heatable fabrics via the integration of globally interconnected silver nanowires (Ag NWs) with sputter-deposited silver atoms. Conventional heatable fabrics, which utilize macroscale or nanoscale conductive wires, often face challenges in balancing flexibility, comfort, and structural durability. The proposed method leverages the advantages of nanoscale metallic wires and vacuum-based sputtering, maintaining fabric flexibility while enhancing heating efficiency. The fabrication process involves dip-coating polyester fabric with Ag NWs, followed by sputter deposition to modulate the nanowire morphology, thereby improving key electrical properties such as wire resistance and contact resistance between wires. The experimental results demonstrate that sputter-deposited Ag NW fabrics exhibit significantly enhanced heating capability compared to undeposited, otherwise identical counterparts. Further, the fabrics maintain their heating characteristics under repeated mechanical bending and prolonged electrical stress, highlighting their potential for use in wearable electronic applications. This approach offers a promising solution to the limitations of current heatable textile technologies, providing a pathway for the development of comfortable, efficient, and durable heatable fabrics.
本研究通过将全球互连的银纳米线（Ag NWs）与溅射沉积的银原子相结合，探讨了柔性可加热织物的制造方法。传统的可加热织物利用宏观或纳米级的导线，在平衡柔韧性、舒适性和结构耐久性方面常常面临挑战。所提出的方法利用了纳米级金属线和基于真空的溅射的优势，在保持织物柔韧性的同时提高了加热效率。制造过程包括用Ag NWs对聚酯织物进行浸涂，然后进行溅射沉积以调节纳米线的形态，从而改善诸如线电阻和线间接触电阻等关键电学性能。实验结果表明，与未沉积的、其他方面相同的织物相比，溅射沉积的Ag NW织物具有显著增强的加热能力。此外，这些织物在反复机械弯曲和长时间电应力下仍保持其加热特性，突出了它们在可穿戴电子应用中的潜力。这种方法为当前可加热纺织技术的局限性提供了一个有前景的解决方案，为开发舒适、高效和耐用的可加热织物提供了一条途径。
