Abstract
Electrochemical surfactant mediated growth of 
on 
was investigated experimentally using in situ scanning tunneling microscopy. Almost ideal layer‐by‐layer growth of 
was obtained using 0.8 of a monolayer of 
as a surfactant. Atomically flat epitaxial 
thin films, 200 monolayer in thickness were grown on 
using this technique. Energy dispersive X‐ray analysis and Rutherford backscattering spectrometry showed no traces of 
in the 
layers grown. ©1999 The Electrochemical Society