Current-induced performance degradation of Cz-Si solar cells

B-O-correlated performance degradation in Cz-Si solar cells has been investigated. The current is injected into solar cells in comparison with the light-induced cell performance degradation. A significant difference is found between current injection and illumination in low-injection region. The degradation in high injection region is explained by lifetime degradation calculated from J_sc-V_∝ curves. A significant degradation is a rapid performance drop at the initial decay. V_∝ recovery property is found to be processed single-exponentially in spite of the multi-exponential degradation.