Question

24. What is the value of energy band gap in
LED​

Answer 1

Answer:

1.67 eV

Explanation:

The band gap is 1.67 eV, which corresponds to a wavelength of 743 nm. Red light is emitted. LEDs are mostly made from direct semiconductors because no change in momentum is required for an electron in the conduction band to recombine with a hole in the valence band.

Answer 2

Answer:

The band gap is 1.67 eV, which corresponds to a wavelength of 743 nm. Red light is emitted. LEDs are mostly made from direct semiconductors because no change in momentum is required for an electron in the conduction band to recombine with a hole in the valence band.