Which outcome occurs when the dopant concentration gradient fails during LED fabrication?

💡 Explanation

Reduced quantum efficiency forms because diminished band bending within the active region stems from insufficient concentration gradient near the p-n junction of the hetero-structure LED, resulting in lower radiative recombination; therefore, the LED produces fewer photons, rather than performing better with a sharper junction profile.

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• Which outcome occurs when minority carriers approach a PN junction?
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