The distribution of O in a sample of n-type material was determined using infra-red absorption and radio-activation analytical techniques. The dislocation density was between 102 and 104/cm2. It was found that the diffusivity was described by:

D(cm2/s) = 1.5 x 100exp[-2.77(eV)/kT]

and that the results agreed well with those obtained using internal friction methods.

G.Vakilova, R.F.Yitman, A.A.Lebedev, S.Mukhammedov: Fizika i Tekhnika Poluprovodnikov, 1982, 16[12], 2204-7