Adsorption Promotion of Ag Nanoparticle Using Cationic Surfactants and Polyelectrolytes for Electroless Cu Plating Catalysts
Adsorption Promotion of Ag Nanoparticle Using Cationic Surfactants and Polyelectrolytes for Electroless Cu Plating Catalysts
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DOI：
10.1149/1.3306025
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发表时间：
2010-04
影响因子：
3.9
通讯作者：
Y. Fujiwara;Y. Kobayashi;Takanori Sugaya;A. Koishikawa;Yasuhiro Hoshiyama;H. Miyake
中科院分区：
文献类型：
--
作者：
Y. Fujiwara;Y. Kobayashi;Takanori Sugaya;A. Koishikawa;Yasuhiro Hoshiyama;H. Miyake
将银纳米粒子吸附到环氧树脂和氟掺杂氧化锡（FTO）玻璃基板上，通过浸渍银纳米粒子胶体溶液来催化基板进行化学镀铜。在Ag纳米颗粒吸附之前，用阳离子表面活性剂硬脂基三甲基氯化铵（STAC）或阳离子表面活性剂聚（二烯丙基二甲基氯化铵）（PDDA）调节基底，两者都具有季胺头基。吸附的Ag纳米颗粒催化HCHO氧化反应，从而允许无电Cu沉积反应开始。对于环氧树脂和FTO玻璃基板，使用季胺浓度为10 0 × 10 - 3 molL-1的浓缩PDDA溶液进行处理最有效地产生了最大量的待吸附的Ag纳米颗粒，并提供了最快的化学镀铜初始沉积速率。当使用稀释的调理剂时，稀释的STAC和PDDA之间的比较表明，STAC对于环氧基片是更有效的调理剂，而PDDA对于FTO玻璃基片更有效。STAC的有效性归因于与环氧基底表面的强疏水相互作用。然而，PDDA的有效性归因于与FTO玻璃表面的强静电相互作用。
Ag nanoparticles were adsorbed onto epoxy and fluorine-doped tin oxide (FTO) glass substrates by dipping them into a Ag nanoparticle colloidal solution to catalyze the substrate for electroless Cu plating. Before the Ag nanoparticle adsorption, the substrates were conditioned with either a cationic surfactant, stearyltrimethylammonium chloride (STAC), or a cationic polyelectrolyte, poly(diallyldimethylammonium chloride) (PDDA), both having quaternary amine headgroups. The adsorbed Ag nanoparticles catalyzed the HCHO oxidation reaction, thereby allowing the electroless Cu deposition reaction to start. For both the epoxy and the FTO glass substrates, conditioning with the concentrated PDDA solution having a 100 × 10 -3 mol L -1 quaternary amine concentration was the most effective in producing the largest amounts of Ag nanoparticles to be adsorbed and in providing the fastest initial deposition rate of the electroless Cu plating. When the diluted conditioners were used, a comparison between the diluted STAC and PDDA showed that STAC was the more effective conditioner for the epoxy substrates, while PDDA was more effective for the FTO glass substrates. The effectiveness of STAC was attributed to the strong hydrophobic interaction with the epoxy substrate surface. However, the effectiveness of PDDA was attributed to the strong electrostatic interaction with the FTO glass surface.