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In an LED display operating at high ambient temperature, which consequence results from increased leakage current?

A)Reduced light output efficiency
B)Faster response and switching times
C)Band gap energy increases sharply
D)Enhanced electromagnetic interference (EMI)

💡 Explanation

Increased temperature elevates intrinsic carrier concentration, causing thermal runaway in the LED; therefore, higher leakage current increases non-radiative recombination rates like Shockley-Read-Hall (SRH) recombination, because these recombination processes are temperature dependent, decreasing efficiencies, rather than improving responsiveness or band gaps.

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