SRH and radiative recombination

[Pete99]

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.

[Pete99]

Any idea?

[yongxiangu]

I have the same question!

[yongxiangu]

I seem to remember that GaP doped with N can emit green light, is this an example giving the energy to photons?