The energetics of S-H complex defects in diamond were considered. If the defects were in partial equilibrium with dopants adsorbed on the restored (100) surface, some S-H complexes could be incorporated with a lesser energy than that required for single-vacancy formation. However, they did not exhibit shallow donor characters. Thus, it was not quite obvious whether the S atoms doped in diamond could work as real donors.

Theoretical Modelling of Sulfur–Hydrogen Complexes in Diamond. T.Miyazaki, H.Okushi: Diamond and Related Materials, 2002, 11[3-6], 323-7