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← ScienceWhich outcome results in a solar cell when impurities within the band regions modifies the material?
A)Increased electron-hole pair recombination rate
B)Augmented charge carrier separation efficiency✓
C)Reduced light absorption quantum yield
D)Diminished open-circuit voltage production
💡 Explanation
Augmented charge carrier separation results because impurity doping establishes a built-in electric field via band bending, therefore this facilitates charge separation, rather than increased recombination, diminished voltage, or reduced absorption in the cell.
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