Hydrogen adsorption on Si(111)–(7×7)

Abstract

Deuterium adsorption on the clean Si(111)–(7×7) surface was quantitatively studied by determining the absolute coverage as a function of exposure using nuclear microanalysis. The coverage was correlated with structural changes seen by low energy electron diffraction and the high energy ion scattering surface peak. A saturation coverage of 1.25±0.13 monolayers was established for activated deuterium adsorption.