Abstract

We summarize recent results in hydrogen passivation in silicon, and present the first comprehensive diffusion profiles, i.e. profiles in floating zone n-type and p-type vs. temperature and vs. resistivity. Domination of hydrogen diffusion by impurity trapping is clearly indicated for part of the profile in low resistivity p-type silicon. Also discussed are the current models of hydrogen passivation of dangling bonds, shallow acceptors, shallow donors and hyper-deep defects.

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