At thermal equilibrium in a p-n junction why do the drift and diffusion current components sum to zero to give a net current density J of zero?
The drift-diffusion equation basically states that for every electron (or conversely hole) that diffuses an electron (or conversely hole) must drift back in return?
The drift-diffusion equation basically states that for every electron (or conversely hole) that diffuses an electron (or conversely hole) must drift back in return?