Quantum Efficiency of LED

[main2510]

How to get Quantum Efficiency of an LED in SILVACO ATLAS simulation?

 

[FvM]

quantum efficiency of a LED

Operating the LED as a photodetector? I'm not aware of q.e. defined for light sources.

 

[erikl]

I'm not aware of q.e. defined for light sources.

Hello Frank,

I think q.e. can also be defined for light sources, see e.g. this Q.E. definition for lasers. In analogy to the q.e. of light receivers, an internal and external q.e. can be derived for lasers and LEDs, too.

Cheers, erikl

 

[FvM]

I think q.e. can also be defined for light sources, see e.g. this Q.E. definition for lasers. In analogy to the q.e. of light receivers, an internal and external q.e. can be derived for lasers and LEDs, too.

But Q,E of a LED won't have a meaning similar to a photo diode where it directly links photons with photo current.

 

[erikl]

Why not? Vice versa one can directly relate the generated photons to the stimulating laser/LED current.
And then relate EQE to IQE again in analogy to that given in the 2^nd link above.

 

[FvM]

You are absolutely right. I wasn't aware yet of QE used as a measure of LED effectivity. But there are many examples discussing it, e.g.

https://www.personal.psu.edu/cao5021/Ostrowski Practice Thesis.pdf

 

[main2510]

OK guys the with the fact that QE for LED has a meaning can you please suggest me how to get it from a SILVACO ATLAS Simulator?