Ko Jiwoo, Zhao Zhi-Jun, Hwang Soon Hyoung, Kang Hyeok-Joong, Ahn Junseong, Jeon Sohee, Bok Moonjeong, Jeong Yongrok, Kang Kyungnam, Cho Incheol, Jeong Jun-Ho, Park Inkyu
Department of Mechanical Engineering , Korea Advanced Institute of Science and Technology (KAIST) , 291 Daehak-ro , Yuseong-gu, Daejeon , 34141 , South Korea.
Nano-Convergence Mechanical Systems Research Division , Korea Institute of Machinery and Materials (KIMM) , 156 Gajeongbuk-ro , Yuseong-gu, Daejeon , 34103 , South Korea.
ACS Nano. 2020 Feb 25;14(2):2191-2201. doi: 10.1021/acsnano.9b09082. Epub 2020 Jan 31.
The growing interest in wearable devices has drawn increased attention to smart textiles, and various transfer methods have therefore been introduced to realize the desired functions using textiles as substrates. However, the existing transfer techniques are not suited for the production of sophisticated nanoscale patterns on textiles, as textile roughness and difficulty of precise pattern size control hinder miniaturization, deteriorate device performance, and complicate the use of optical phenomena such as surface plasmon resonance. To address these limitations, we have developed a method based on simple dissolution of a water-soluble nanopatterned polymer film for the facile transfer of nanostructures of on-film-deposited functional materials onto textile substrates. The above method tolerates a variety of functional materials, e.g., metals and SiO, and nano/microscale structures, e.g., nanoscale lines, dots, holes, and mesh patterns with a minimum pattern width of 50 nm. The proposed technique is employed to fabricate a palladium nanoscale line array (utilized as a highly sensitive and selective hydrogen sensor) and is shown to be suitable for the production of security patterns on textiles, as it allows the printing of complex nanostructure patterns with electrical and optical functionalities.
对可穿戴设备日益增长的兴趣使得智能纺织品受到更多关注，因此引入了各种转移方法，以便以纺织品为基底实现所需功能。然而，现有的转移技术并不适合在纺织品上制作复杂的纳米级图案，因为纺织品的粗糙度以及精确控制图案尺寸的难度阻碍了小型化，降低了器件性能，并使诸如表面等离子体共振等光学现象的应用变得复杂。为了解决这些限制，我们开发了一种基于水溶性纳米图案化聚合物薄膜简单溶解的方法，用于将薄膜沉积功能材料的纳米结构轻松转移到纺织品基底上。上述方法适用于多种功能材料，例如金属和SiO，以及纳米/微米级结构，例如纳米级线条、点、孔和网格图案，最小图案宽度为50 nm。所提出的技术被用于制造钯纳米级线阵列（用作高灵敏度和选择性氢传感器），并且显示出适用于在纺织品上制作安全图案，因为它能够印刷具有电学和光学功能的复杂纳米结构图案。
