Adsorbate Mediated Electrodeposition: Experimental and Multiscale Numerical Investigations on Surface Roughness and Shape Evolution

提案标题：吸附剂介导的电沉积：表面粗糙度和形状演变的实验和多尺度数值研究提案编号：CTS-0135621首席研究员：Richard Alkire机构：伊利诺伊大学这项合作努力的目的是提高对金属和合金电沉积过程中微量溶液添加剂如何影响表面粗糙度和形状演变的理解。 将进行电沉积过程的多尺度模拟，包括连续和非连续行为。 添加剂如何影响表面粗糙度的演变的假设将推断从大的数据集，通过原子力显微镜（AFM）的测量结合高通量的电化学电池和良好的特征模型添加剂系统进行。 将通过这些数据与粗糙度演变的多尺度模拟的定量比较来完善假设。 非连续现象将通过三维动力学蒙特卡罗方法建模，该方法模拟粗糙度演变如何受添加剂控制。 将进行测量卷积几何形状表面上的形状演变的验证实验，以测试多个长度尺度上的预测。 这项工作将导致更好地了解用于制造新的结构形成的金属，合金和半导体的电沉积过程。

Proposal Title: Adsorbate Mediated Electrodeposition: Experimental and Multiscale Numerical Investigations on Surface Roughness and Shape EvolutionProposal Number: CTS-0135621Principal Investigator:Richard AlkireInstitution:University of IllinoisThe objective of this collaborative effort is to improve understanding of how surface roughness and shape evolution are influenced by trace quantities of solution additives during electrodeposition of metals and alloys. Multiscale simulations of the electrodeposition process including both continuum and non-continuum behavior will be performed. Hypotheses for how additives influence surface roughness evolution will be inferred from large datasets obtained through atomic force microscopy (AFM) measurements carried out in conjunction with high throughput electrochemical cells and well-characterized model additive systems. Hypotheses will be refined through quantitative comparison of these data with multiscale simulations of roughness evolution. Non-continuum phenomena will be modeled by a three-dimensional kinetic Monte Carlo method that simulates how roughness evolution is controlled by additives. Verification experiments that measure shape evolution on surfaces of convoluted geometry will be carried out to test predictions over multiple length scales. This work will lead to a better understanding of processes used in the manufacture of novel structures formed by electrodeposition of metals, alloys and semiconductors.