Optical Spectroscopy to Study Metal Deposition

The growth rate, characterized by the partial current density is the factor determining the equilibrium shape of a crystal. The faces with the smallest partial current densities 

Additives can control the growth rate by blocking surface processes, e.g., surface diffusion or the transfer in and out of kink site positions. Therefore, interaction of additives with the different crystallographic structures is a dominating factor in the development of crystallographic shape and structure. 

Reflection spectroscopy, Raman spectroscopy, and ellipsometry complement the various electrochemical methods to study metal deposition. The optical methods can be used for a direct monitoring of the deposition process. The great advantage of optical spectroscopy 

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