R. Peat et al., PHOTOCURRENT DISTRIBUTION ACROSS THE INTERFACIAL REGION OF THE N-GAASELECTROLYTE JUNCTION/, Faraday discussions, (94), 1992, pp. 369-385
A scanning laser microscope has been used to study the photoelectroche
mical etching of n-GaAs at the electrolyte interface. Results are pres
ented that show directly, in a qualitative way, the distribution of in
terfacial charge transfer in the vicinity of microscopic surface defec
ts and the effect of potential and electrolyte composition on this dis
tribution.