Hydrogen neutralization of chalcogen double donors in silicon

Pensl, G.; Roos, G.; Holm, C.; Sirtl, E.; Johnson, N. M.
August 1987
Applied Physics Letters;8/10/1987, Vol. 51 Issue 6, p451
Academic Journal
Hydrogen neutralization of chalcogen (S, Se, and Te) double-donor centers in single-crystal silicon is demonstrated with deep level transient spectroscopy. The deep-donor chalcogen concentration can be reduced by greater than a factor of 100, while in the same samples the phosphorus shallow-donor concentration decreases by only a small percentage. Both electronic levels of the double donors were fully removed by hydrogenation and recovered with an anneal at 500 °C.


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