Abstract

We present results of ab initio calculations for the structure and energetics of boron–interstitial clusters in Si and a respective continuum model for the nucleation, growth, and dissolution of such clusters. The structure of the clusters and their possible relationship to boron precipitates and interstitial-cluster formation are discussed. Our continuum model suggests that inclusion of the fractional activation of charged clusters into the overall carrier count can make a substantial difference, if a sample contains a large fraction of B clustered in B3I— clusters, which might present a way to probe these clusters experimentally.

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