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The growth of Pb on Si(111) with and without Ag as an interfactant is studied in the temperature range from 270 to 375 K by microscopy and spectroscopy. Whereas Pb grows on the Si(111)-7x7 surface in the Stranski-Krastanov (SK) mode, the growth mode on the Si(111)-√3x√3-R30 o -Ag surface changes from layer-by-layer below 300 K to SK mode above 300 K. Spectroscopy shows that Ag remains at the...
Different nucleation and growth mechanisms (Volmer-Weber, Frank-van der Merwe, and Stranski-Krastanov) have been found to operate in electrocrystallization and ultra-thin film formation of metals, Me, on foreign substrates, S, where 2D UPD Me adlayers on S can act as precursors for the subsequent nucleation and growth. Modern techniques, particularly in situ STM with lateral atomic resolution, give...
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