Determination of relative impurity concentrations using photoluminescence: A case study of the Si: (B,In) system

G. S. Mitchard, T. C. McGill

Applied Physics Letters · 1980 · 13 citations · 13 references

Concepts

Abstract

We report on a systematic study of the use of photoluminescence for the determination of relative impurity concentrations. The system chosen for the study was Si with a shallow level, B, in the presence of a deeper level, In. The results show that, at sufficiently low concentrations, the photoluminescence intensities can be used to determine the relative impurity concentrations. At higher In concentrations (NIn ≳1015 cm−3) we find that exciton transfer from B to In results in a quenching of the B photoluminescence intensity. For NIn ≳2×1016 cm−3, B photoluminescence was not observed in any sample studied.

References

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