“…Fig.4 shows a small change in the series resistance, we can say that it is invariant with respect to light intensity in the range from 160W/m 2 to 1000 W/m 2 . These results are consistent with those found by Kassis and Saad [16] for the same technology and the range of irradiation from 0 to 200 W/m 2 [16], and Chan and Phang [17]. The evolution of the shunt resistance as a function of irradiation between 0 and 200W/m 2 is almost constant.…”