pvdeg.letid.j0_gray#
- pvdeg.letid.j0_gray(ni2, diffusivity, na, diffusion_length, arg, srv)[source]#
Returns j0 (saturation current density in quasi-neutral regions of a solar cell) as shown in eq. 3.128 in [1].
- Parameters:
ni2 (numeric) – intrinsic carrier concentration [m^-3].
diffusivity (numeric) – carrier diffusivity [m/s].
na (numeric) – doping density [m^-3].
diffusion_length (numeric) – carrier diffusion length [m].
arg (numeric) – (W-xn)/Lp term, (wafer_thickness-depletion region thickness)/diffusion_length [unitless].
srv (numeric) – surface recombination velocity [m/s].
- Returns:
numeric – j0 [A]
References
in Handbook of Photovoltaic Science and Engineering, A. Luque and S. Hegedus, Eds. Chichester, UK: John Wiley & Sons, Ltd, 2011, pp. 82–129. doi: 10.1002/9780470974704.ch3.