| (1) Band-to-band recombination |
(1) It occurs between the excited electron and the hole lying in the empty valence band |
(1) The production of available electrons and holes limits this reaction |
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| (2) It is second order to the concentration of the charge Carrier |
| (2) Trap-assisted recombination |
(1) This mechanism transpires with the help of the “trap” state |
(1) Shockley–Read–Hall model (SRH model) confirmed that the concentration of charge carriers hinders this reaction or mechanism |
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| (2) It happens between the excited electrons and holes in the valence band |
| (3) Auger recombination |
(1) This usually happens during the recombination process of the excited electron and hole |
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| (2) Releasing the energy to improve the energy of another electron or hole |
