Abstract
The morphology of copper electrodeposits from acidic copper sulphate solution was studied at various copper sulphate concentrations and at relatively low overpotentials. The morphology at the various concentrations was not affected much by the current density, but rather by the overpotential. The evolution of 3-D nuclei was found to be a possible cause of the morphological change, since the critical overpotential for the evolution had a nearly constant value despite the concentration change. Unfortunately, a quantitative explanation of the data are not yet possible.
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