Capacitance-voltage profiling and deep-level transient spectroscopic studies were made of the passivation of the Au center, after H injection via wet chemical etching. This revealed the presence of two H-Au complexes. One of these complexes was electrically active, and was thought to have 3 deep levels in the band-gap. The other H-Au complex was electrically inactive. It was suggested that the former complex was a Au-H pair and that the latter complex was Au-H2.

E.O.Sveinbjörnsson, O.Engström: Materials Science and Engineering B, 1996, 36[1-3], 192-5