Obtention of solar cell parameters, through convergence of iterative cycles. Part 2: Application to experimental current-voltage measurements

Obtention of solar cell parameters, through convergence of iterative cycles. Part 1: Theoretical analysis and cycles proposal

“…The results obtained in this Part 1, are used in real experimental 𝐼𝑉 curves in Part 2 [55], revealing the suitability of the iterative cycles to obtain the solar cell parameters for different solar cells/panels, both in darkness and under illumination [55].…”

Addendum for: Solar cell parameter accuracy improvement, via refinement of the Co-Content function. Part 1: theoretical analysis (2022 Eng. Res. Express 4 015022)

“…The [0 V, 1 V] range was chosen, using = n 2.5, R s = 1 Ω, R sh = 1 kΩ, I sat = 1 μA, and I lig = 1 mA. Second-generation laboratory-made solar cells usually function in this voltage range, and have this magnitude of solar cell parameters, i.e., I lig and R sh are three orders of magnitude larger than I sat and R s , respectively (see section 2 in [6] and [7,8,10]). The first eight simulated IV curves were computed noiseless, calculating I for P V = 11, 51, 101, 501, 1001, 5001, 10001, and 50001 number of points V equally spaced voltage points in the voltage range, for each simulated curve.…”

“…Several techniques to obtain them are discussed in the introduction of [3]. It seems that only a handful of techniques can be applied to deduce them, independently of irradiation conditions and/or approximations [2][3][4][5][6][7][8]. One of them, the Ortiz-Conde et al method, uses the Lambert function to obtain them [8].…”

Addendum for: “Solar cell parameter accuracy improvement, via refinement of the Co-Content function. Part 2: Discussion on the experimental application” (2022 Eng. Res. Express 4 015020)

“…oc Laboratory-made second-generation solar cells usually have this magnitude of solar cell parameters, i.e., I lig and R sh are three orders of magnitude larger than I sat and R s , respectively (see section 2 in [6] and [4,7,13] ). The first eight simulated IV curves were computed noiseless, calculating I for P V = 11, 51, 101, 501, 1001, 5001, 10001, and 50001 number of points V equally spaced voltage points in the voltage range, for each simulated curve.…”

“…To achieve this, several techniques have appeared in the literature, and they are briefly commented on in the Introduction of [3]. Most of them require some approximations and/or irradiation measurements, and only a few can be applied without illumination measurements, or doing some approximations [2][3][4][5][6][7][8]. The Ortiz-Conde et al method is one of them [8].…”