Abstract

Isochronal annealing with zero and reverse bias applied to Schottky diodes was used to monitor the evolution of hydrogen interaction with point defects observed in hydrogen-implanted p-type silicon, i.e., divacancy (VV), carbon–oxygen interstitial pair (C i O i ) and two levels at E v+0.28 and E v+0.50 eV. The VV and C i O i are passivated by hydrogen liberated from hydrogen-containing defects during annealing in the temperature range 90–150°C and reappear upon annealing above 180°C under reverse bias due to hydrogen liberation and its field drift. Two levels at E v+0.50 and E v+0.28 eV are ascribed to irradiation-induced and hydrogen-related defects, respectively.

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