Region-selective electroless gold plating on polycarbonate sheets by UV-patterning in combination with silver activating
作者:Qinghua Zhou、Hengwu Chen、Yi Wang
DOI:10.1016/j.electacta.2009.12.024
日期:2010.2
solution, so that the silver ions were chemisorbed by the photochemically generated carboxyl groups. When the Ag+-adsorbed PC sheet was immersed into an electroless gold plating bath, shiny gold film quickly deposited on the UV-exposed region, resulting in the formation of a micro gold devices on the PC surface. The whole plating process including UV-exposure, surface activating and gold plating can be completed
通过将无光刻胶的UV图案与无锡和无胺的银活化以及化学镀金相结合,已经建立了一种简单,省时,经济的聚碳酸酯(PC)表面区域金属化方法。PC片材的表面通过光掩模暴露于从低压汞灯发出的紫外线下,由于在UV暴露区域上羧基的光化学生成,掩模上的微图案转移到了PC表面。然后,用氨水AgNO 3溶液处理暴露于紫外线的PC片材,以使银离子被光化学生成的羧基化学吸附。当银+将被吸附的PC片浸入化学镀金浴中,将有光泽的金膜快速沉积在UV曝光的区域上,从而在PC表面上形成微金器件。整个镀覆过程(包括紫外线暴露,表面活化和镀金)可在约3-4小时内完成。采用衰减全反射傅立叶变换红外光谱仪(ATR-FT-IR),X射线光电子能谱(XPS),原子力显微镜(AFM)和扫描电子显微镜(SEM)来跟踪镀覆过程中的表面变化。循环伏安法(CV)和苏格兰®-带测试分别用于表征所制备的微金装置的电化学性质和粘附强度。证明了所制备的微金电极可用于安培检测过氧化氢。