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← ScienceWhich outcome reduces solar cell efficiency due to excited electrons?
A)Surface electron-hole recombination amplifies losses✓
B)Auger recombination heats the lattice locally
C)Direct bandgap enhances electron emission
D)Urbach tail increases radiative losses
💡 Explanation
Surface electron-hole recombination causes energy loss because surface defects introduce energy states within the band gap creating more opportunities for electrons and holes to recombine non-radiatively. This reduces overall efficiency, rather than efficient operation; therefore, electron-hole recombination amplifies these losses.
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