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← ScienceWhich mechanism causes energy absorption reduction in high-purity crystal silicon?
A)Phonon-photon energy up-conversion
B)Auger recombination diminishes rapidly✓
C)Impact ionization probability declines
D)Increased free carrier light scattering
💡 Explanation
The dominant mechanism is Auger recombination diminishing because with fewer impurities that cause electron-hole generation, energy transfer to electrons decreases; therefore, energy absorption is reduced, rather than increased scattering.
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