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← ScienceWhich outcome occurs when a photovoltaic crystal experiences annealing?
A)Increased power conversion efficiency✓
B)Reduced open-circuit voltage appears
C)Accelerated crystal lattice degradation
D)Decreased short-circuit current emerges
💡 Explanation
Annealing reduces crystal defects, increasing carrier mobility; therefore, efficiency improves because fewer electron-hole pairs recombine at traps due to fewer irregularities in grain boundaries allowing for better overall conductivity rather than diminishing voltage or current.
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