Laboratory of Organic NanoPhotonics and CAS Key Laboratory of Bio-Inspired Materials and Interfacial Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, No. 29, Zhongguancun East Road, Beijing, 100190, P. R. China.
University of Chinese Academy of Sciences, No. 29, Zhongguancun East Road, Beijing, 100190, P. R. China.
Sci Rep. 2017 Feb 2;7:41757. doi: 10.1038/srep41757.
Flexible electrically conductive nanowires are now a key component in the fields of flexible devices. The achievement of metal nanowire with good flexibility, conductivity, compact and smooth morphology is recognized as one critical milestone for the flexible devices. In this study, a two-beam laser direct writing system is designed to fabricate AgNW on PET sheet. The minimum width of the AgNW fabricated by this method is 187 ± 34 nm with the height of 84 ± 4 nm. We have investigated the electrical resistance under different voltages and the applicable voltage per meter range is determined to be less than 7.5 × 10 V/m for the fabricated AgNW. The flexibility of the AgNW is very excellent, since the resistance only increases 6.63% even after the stretched bending of 2000 times at such a small bending radius of 1.0 mm. The proposed two-beam laser direct writing is an efficient method to fabricate AgNW on the flexible sheet, which could be applied in flexible micro/nano devices.
柔性导电纳米线现在是柔性器件领域的关键组成部分。实现具有良好柔韧性、导电性、紧凑和平滑形态的金属纳米线被认为是柔性器件的一个关键里程碑。在这项研究中，设计了一种双光束激光直写系统，在 PET 片上制造 AgNW。通过这种方法制造的 AgNW 的最小宽度为 187±34nm，高度为 84±4nm。我们研究了不同电压下的电阻，确定所制造的 AgNW 的每米适用电压范围小于 7.5×10V/m。AgNW 的柔韧性非常优异，即使在小弯曲半径为 1.0mm 的情况下进行 2000 次拉伸弯曲，其电阻也仅增加了 6.63%。所提出的双光束激光直写是在柔性片上制造 AgNW 的有效方法，可应用于柔性微/纳米器件。
