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← ScienceWhich outcome occurs when a photovoltaic cell's doping concentration is mismatched?
A)Fermi level shift is non-optimal✓
B)Increased short-circuit current is generated
C)Light absorption spectrum is broadened
D)Electron-hole recombination generation increases
💡 Explanation
A mismatched doping concentration causes sub-optimal band bending via Fermi level changes, limiting carrier separation rather than increasing current. The depletion width decreases because the energy levels do not favorably align, therefore the cell’s power output drops sharply, not broadens absorption.
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