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← ScienceWhich mechanism causes decreased efficiency when cadmium telluride crystals grow rapidly?
A)Enhanced radiative recombination dominates
B)Schottky defect formation increases
C)Increased trap-assisted recombination✓
D)Auger recombination efficiency maximized
💡 Explanation
Rapid crystal growth introduces dislocations; these deform the lattice, creating trap states that act as recombination centres, and trap-assisted recombination occurs because electrons and holes are trapped and recombine, therefore reducing carrier lifetime, rather than radiative pathways.
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