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whatisreality
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Homework Statement
The IQE is defined as (photons emitted from active region ##s^{-1}##) / electrons injected across the junction.
Derive an expression for this quantity, then find the injected electron concentration ##n## which maximises it.
Homework Equations
The Attempt at a Solution
We've been taught that radiative recombination is given by ##\sim Bn^2##, SRH recombination by ##\sim An## and Auger by ##\sim Cn^3##. So then is the expression for IQE just
##\eta = \frac{Bn^2}{An + Bn^2 + Cn^2}##
It doesn't seem like much of a derivation, so I'm concerned that this is wrong or that I've missed something that needs to also be considered. Thanks for any help!