Several vibrational bands were observed near to 3100/cm in samples which had been implanted with H at room temperature and then annealed. The results indicated that these bands were due to N dangling-bond defects which were created by implantation, and were decorated with H. The frequencies were close to those predicted for VGa-Hn complexes. The new lines were therefore tentatively attributed to VGa defects that were decorated with various numbers of H atoms.

M.G.Weinstein, C.Y.Song, M.Stavola, S.J.Pearton, R.G.Wilson, R.J.Shul, K.P.Killeen, M.J.Ludowise: Applied Physics Letters, 1998, 72[14], 1703-5