Detection of Hydrogen on Solid Surfaces by Low-Energy Recoil Ion Spectroscopy

Abstract
Direct detection of hydrogen on the topmost surface of an hydrogenated amorphous silicon film has been made using a low-energy recoil ion spectroscopy method. Energies of positive and negative recoil ions (H+ and H-) produced by Ne+ ion bombardment (below 2 keV) have been measured by an electrostatic analyzer and they agree well with those predicted by elastic binary collision model between Ne and H.