Colombia
Multi-crystalline Si is the preferred material in the photovoltaic world market due to the good balance between production costs and efficiency. However, it has a large number of defects acting as recombination centers for the photogenerated carriers. In this work, we use both the fast inspection provided by the photoluminescence imaging technique with the very high spatial resolution of the light beam induced current and electron beam induced current techniques, for obtaining a comprehensive understanding of the electrical activity and distribution of defects in this material.
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