Preferred orientation of gold electroplating coating based on first-principle calculations
A self-synthetized gold salt with water-solubility is employed as the main salt in electroplating gold bath.The gold coating presents an obvious preferred (111) orientation detected by XRD, and the intensity of (200) peak is slightly stronger than that of (220) peak.The surface energy, atomic geometry and electronic structures of Au(111), (200) and (220) faces were calculated based on the first-principle within generalized gradient approximation.According to the calculation of surface energy, the structural stability of Au surfaces, which decreases in the following order: Au(111)<Au(200)<Au(220), was predicted, which is agreement with the experimental result.The surface energy is related to the surface electronic density of states (DOS) and local electronic density of states (LDOS).
electroplating gold preferred orientation first-principle surface energy density of states
Kun Liang Xiaobo Wan Xiuwen Zhou Xianzhong Tang Wencheng Hu
State Key Laboratory of Electronic Thin Films and Integrated Devices,University of Electronic Scienc Implementary and Administrative Center of Inertial Confinement Fusion,China Academy of Engineering P Research Center of Laser Fusion,China Academy of Engineering Physics,Mianyang 621900,P.R.China
国内会议
成都
英文
323-328
2013-11-15（万方平台首次上网日期，不代表论文的发表时间）