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← ScienceWhich outcome occurs when high-energy photons illuminate a silicon p-n junction?
A)Increased electron-hole pair generation✓
B)Reduced depletion region capacitance
C)Decreased reverse saturation current
D)Enhanced probability of tunneling
💡 Explanation
Excess photons create electron-hole pairs, increasing current flow because the mechanism is band excitation; electrons transition to empty states, hence greater conductivity. Therefore, more electron-hole pairs are created, rather than decreased current or increased tunneling which requires a very narrow, heavily doped junction.
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