generation rate

how to calculate generation rate is presented in Methodology of solar cell of Knowledge base, but i cannot understand how these equations to be deduced.
could you recommend some papers or books about the details of the equations?

Hi, we have a whitepaper on our website that should provide you with the necessary information:

Optoelectronic Modeling of Photosensitive Devices.

A post was split to a new topic: Using “h” or “hbar” in the calculation for generation rate