Dependence of recombination rate on doping

[maverick280857]

Hi

At thermal equilibrium in a semiconducting device, the recombination rate equals the generation rate:

r_{i} = \alpha_{r}n_{0}p_{0} = \alpha_{r}n_{i}^2 = g_{i}

How does the equilibrium recombination constant [itex]\alpha_{r}[/tex] depend on doping and temperature?

Thanks.