Q. The active layer of ELED is made up of which metal?

A
Potassium
B
Sodium
C
Zinc
D
Copper
Solution:

The full form of ELED is ‘Edge Emitting Light-emitting Diodes’. On doping, the layer with Zinc reduces the minority carrier lifetime. This will improve the modulation bandwidth.
Thus, the active layer is made up of Zinc.

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