人工晶体学报, 2017, 46(1): 98-104.
添加剂对DMH体系电沉积金的影响

杨潇薇 1, , 安茂忠 2,

1.中国工程物理研究院电子工程研究所,绵阳,621999;
2.哈尔滨工业大学化工学院,哈尔滨,150001

在以5,5'-二甲基已内酰脲(DMH)为配位剂的镀液体系中研究了添加剂 C4H6O2、C7H4NNaO3S 和 C12H25 SO4 Na对金电沉积工艺和电结晶过程的影响。阴极极化曲线测试中,金电沉积的最佳电势区间是-0.60~-1.2 V,添加剂浓度在研究的范围内对阴极极化电势的影响较小。循环伏安曲线结果表明,反应界面上添加剂的吸附能够影响成核生长超电势,对金还原过程表现出抑制作用。电化学阻抗谱研究表明,镀液中加入添加剂后,电荷转移过程变得更加困难。 SEM观察表明,添加剂改善了镀层质量,晶粒变得细致、均匀。 XRD分析证实,两种镀液体系中获得的镀金层都沿着Au(111)和(220)晶面择优生长。
关键词:   无氰   DMH   添加剂   电沉积
引用: 杨潇薇, 安茂忠 添加剂对DMH体系电沉积金的影响. 人工晶体学报, 2017, 46(1): 98-104. doi: 
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