Abstract With the growing demand for printed electronics, the printing technology using metals has become increasingly crucial. To reduce the thermal damage to printed electronic devices, it is essential to produce the metallic pattern in a short time and at a low temperature. Furthermore, to prevent nozzle clogging in the inkjet printing process, solution-based inks rather than particle-dispersed inks are desired. Here, we demonstrate the one-step printing of a gold line from an aqueous chloroauric acid solution via a nanosecond-pulsed atmospheric pressure (NSAP) nonequilibrium plasma-assisted inkjet printing process. The time required to reach the gold line without any salt footprints was less than 1 min. The substrate temperature was expected to be less than 70 °C, which is lower than that observed for conventional processes. The width of the drawn line changed according to the power input to the plasma. The applicability of the printed gold as a sensing platform for surface-enhanced Raman scattering was confirmed by detecting low concentrations of rhodamine 6G molecules. High-density reactive species in NSAP nonequilibrium plasma are expected to promote rapid and low-temperature fabrication of a metallic pattern from an inorganic metal salt solution, leading to the sophistication and diversification of future printed electronics.

中文翻译：

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通过常压非平衡等离子体辅助喷墨印刷，从无颗粒无机盐基油墨一步法制造金线

摘要 随着对印刷电子产品的需求不断增长，使用金属的印刷技术变得越来越重要。为了减少对印刷电子设备的热损伤，必须在短时间内在低温下制作金属图案。此外，为了防止喷墨打印过程中的喷嘴堵塞，需要基于溶液的墨水而不是颗粒分散的墨水。在这里，我们展示了通过纳秒脉冲大气压 (NSAP) 非平衡等离子体辅助喷墨打印工艺从氯金酸水溶液中一步打印金线。到达没有任何盐足迹的金线所需的时间不到1分钟。基板温度预计低于 70 °C，低于传统工艺观察到的温度。绘制线的宽度根据输入到等离子体的功率而变化。通过检测低浓度的罗丹明 6G 分子，证实了印刷金作为表面增强拉曼散射传感平台的适用性。NSAP 非平衡等离子体中的高密度活性物质有望促进从无机金属盐溶液中快速和低温制造金属图案，从而导致未来印刷电子产品的复杂性和多样化。