Question

Is energy absorbed or given off

when an electron and a hole of a semi-

conductor crystal

recombine? What are the forms of

energy that can be absorbed or given

off?​

Answer 1

when an electron and hole recombine they form photon.this theory is exploited in lasers

Answer 2

Answer:

when an electron and a hole interact and recombine the energy is not transferred into heat energy or thermal vibrations. Instead the energy is transferred into an electron within the conduction band, which is then promoted to an energy higher in the conduction band.

There are 4 forms of energy that may be absorbed or released during a chemical reaction.

Heat.

Light.

Sound.

Electricity.