A study was made of n-type samples, which contained Au and Au-H complexes, by using high-resolution so-called Laplace deep-level transient spectroscopy. This technique permitted 2 distinct electron emission rates to be observed at temperatures of between 240 and 300K. These were associated with the Au acceptor and with the level, labelled G4, which was observed when H and Au were present. The Au acceptor had an activation energy for electron emission of 0.558eV, and the G4 state had one of 0.542eV. It was suggested that the state was acceptor-like.

Laplace-transform deep-level transient spectroscopy studies of the G4 gold-hydrogen complex in silicon P.Deixler, J.Terry, I.D.Hawkins, J.H.Evans-Freeman, A.R.Peaker, L.Rubaldo, D.K.Maude, J.C.Portal, L.Dobaczewski, K.B.Nielsen, A.N.Larsen, A.Mesli: Applied Physics Letters, 1998, 73[21], 3126-8