In situ atomic-scale studies of the mechanisms and dynamics of bismuth and cobalt electrodeposition by Video-STM

本研究的目的是用高速扫描隧道显微镜(Video-STM)研究铋和钴在Au(111)晶面上各向异性(“针状”)电化学生长的机理和动力学。在这两个系统中，都将在高时间分辨率下研究沉积岛的形核和形状演化。Co电沉积的研究将集中在最初两层的生长，特别是Au(111)重构对生长行为的影响。从欠电位沉积(UPD)到过电位下的外延生长，将对Bi2的生长进行研究。

The aim of the proposed research is to clarify the mechanisms and dynamics of the anisotropic (“needle-like”) electrochemical growth of bismuth and cobalt on Au(111) by in-situ high-speed scanning tunnelling microscopy (Video-STM). In both systems the nucleation and shape evolution of the deposit islands will be studied at high time resolution. The studies of Co electrodeposition will focus on the growth of the initial two layers, specifically on the influence of the Au(111) reconstruction on the growth behaviour. Bi growth will be studied from the underpotential deposition (UPD) regime to the epitaxial growth at overpotentials.