The Morphology And Distribution Of Cobalt Clusters On Au (111)

Abstract

In situ scanning tunneling microscopy (STM) and other ex-situ techniques were used in combination to characterize the morphology of Co/Au(111) electrodeposited from CoS0₄ solutions with K₂SO₄ as the supporting electrolyte.

The morphology and distribution of cobalt on Au(111) surfaces can be controlled from epitaxial layer growth to randomly distributed clusters. depending on the applied potential. Bulk deposited layers consist of dispersed clusters or compact layers depending on the deposition potential. The size of the cobalt clusters also depends strongly on the deposition potential.