Department of Natural Sciences, Mid Sweden University , SE-85170 Sundsvall, Sweden.
Institut Charles Gerhardt de Montpellier - UMR 5253 , 34095 Montpellier Cedex 5, France.
ACS Appl Mater Interfaces. 2015 Aug 26;7(33):18273-82. doi: 10.1021/acsami.5b03061. Epub 2015 Aug 13.
Low-cost solution-processing of highly conductive films is important for the expanding market of printed electronics. For roll-to-roll manufacturing, suitable flexible substrates and compatible postprocessing are essential. Here, custom-developed coated papers are demonstrated to facilitate the inkjet fabrication of high performance copper patterns. The patterns are fabricated in ambient conditions using water-based CuO dispersion and intense pulsed light (IPL) processing. Papers using a porous CaCO3 precoating, combined with an acidic mesoporous absorption coating, improve the effectiveness and reliability of the IPL process. The processing is realizable within 5 ms, using a single pulse of light. A resistivity of 3.1 ± 0.12 μΩ·cm is achieved with 400 μm wide conductors, corresponding to more than 50% of the conductivity of bulk copper. This is higher than previously reported results for IPL-processed copper.
低成本溶液处理工艺对于不断扩大的印刷电子产品市场非常重要。对于卷对卷制造,合适的柔性基板和兼容的后处理是必不可少的。在这里,定制的涂层纸被证明可以促进高性能铜图案的喷墨制造。使用基于水的 CuO 分散体和强脉冲光(IPL)处理在环境条件下制造图案。使用多孔 CaCO3 预涂覆层,结合酸性介孔吸收涂层,可以提高 IPL 工艺的有效性和可靠性。处理可以在 5 毫秒内完成,仅使用单个光脉冲。400μm 宽的导体的电阻率为 3.1±0.12μΩ·cm,这超过了块状铜 50%以上的电导率。这高于以前报道的 IPL 处理铜的结果。