Stranski-Krastanov growth of Ag on Au(111) electrodes

S. G. Corcoran, G. S. Chakarova, K. Sieradzki

Research output: Contribution to journalArticle

66 Scopus citations

Abstract

We present results obtained by in situ scannning tunneling microscopy which show the morphological details of the transition from layer by layer growth to three-dimensional island growth during electrodeposition. Two epitaxial layers of Ag are sequentially formed prior to the heterogeneous nucleation of three-dimensional Ag crystallites which preferentially develop on steps. The 3D growth initiates when 2D protrusions growing on the completed second adlayer achieve a critical dimension of order 20-50 nm. Our observations and analysis indicate that the growth transition may be kinetically determined by adatom migration over descending steps.

Original languageEnglish (US)
Pages (from-to)1585-1588
Number of pages4
JournalPhysical Review Letters
Volume71
Issue number10
DOIs
StatePublished - Jan 1 1993
Externally publishedYes

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ASJC Scopus subject areas

  • Physics and Astronomy(all)

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