Silver electrodeposition on nanostructured gold: from nanodots to nanoripples

摘要: Silver nanodots and nanoripples have been grown on nanocavity-patterned polycrystalline Au templates by controlled electrodeposition. The initial step is the growth of a first continuous Ag monolayer followed preferential deposition at nanocavities. Ag-coated nanocavities act as preferred sites for instantaneous nucleation three-dimensional metallic centres. By controlling amount deposited Ag, dots approximately 50 nm average size 4 height can be with spatial distributions dictated template. are in metastable state. Further drives dot surface structure to nanoripple formation. Results show that electrodeposition nanopatterned electrodes used prepare high density nanostructures narrow distribution order.