SRH and radiative recombination

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SUMMARY

Trap-assisted Shockley-Read-Hall (SRH) recombination is a non-radiative process that transfers energy to phonons rather than generating photons. The discussion highlights the fundamental mechanisms that dictate whether energy is emitted as photons or phonons, emphasizing that the presence of traps and the material properties play crucial roles. The example of nitrogen-doped Gallium Phosphide (GaP) is cited as a scenario where photon emission occurs, demonstrating that specific doping can enable radiative recombination.

PREREQUISITES
  • Understanding of Shockley-Read-Hall (SRH) recombination
  • Knowledge of phonon and photon interactions in semiconductor physics
  • Familiarity with doping effects in semiconductor materials
  • Basic principles of radiative versus non-radiative recombination
NEXT STEPS
  • Research the mechanisms of Shockley-Read-Hall recombination in detail
  • Explore the role of traps in non-radiative recombination processes
  • Investigate the properties of nitrogen-doped Gallium Phosphide (GaP) and its photonic applications
  • Learn about phonon emission and its implications in semiconductor devices
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Physicists, materials scientists, and engineers involved in semiconductor research and development, particularly those focused on optoelectronic applications and recombination processes.

Pete99
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Hi,

I have read in different references that trap assisted SRH recombination is non radiative and gives the energy to phonons.

However, I have not been able to understand why is not possible to generate photons in this case. I mean, can SRH recombination give the energy to photons? What determines in this case if photons or phonons are emmited?

Thanks for any help.
 
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Any idea?
 
I have the same question!
 
I seem to remember that GaP doped with N can emit green light, is this an example giving the energy to photons?
 

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