A new method for experimental determination of the series resistance of a solar cell

A new method for determining the series resistance of a solar cell from illuminated
I-V
measurements is presented. The method, based on the computation of the area
A
, under the
I-V
curve, evaluates R
s
using the equation
R_{s} = 2[V_{oc}/I_{sc} - A/_sc^2 - (mkT/q) (1/I_{sc})]
This technique takes advantage of the special feature of integration as a procedure to smooth data errors. The R
s
obtained represents the resistive effects globally.