Shockley’s Equation Fit Analyses for Solar Cell Parameters from I-V Curves

Table 1

Comparison of manual and Shockley nonlinear fit on any solar cell. The Δ is from reference while χ² is from this work.

Number	Solar cell	Voc (V)	Isc (A)	Iph (A)	I0 (μA)	Rs (Ω)	Rsh (kΩ)	n	T (°C)	Δ/χ^2
1	Cell Si (R.T.C France) [21]	0.5728	0.7608	0.7608	0.3223	0.0364	0.0538	1.484	33	8.9 × 10^−7
	Manual	0.567	0.758	—	—	0.11	0.0324	—		—
	Previous work [18]	0.57	0.76	0.77	0.2	0.037	0.032	1.4		5.6 × 10^−7
	Nonlinear fit	0.568	0.758	0.7595	0.186	0.047	0.0355	1.418		2.9 × 10^−6
2	Module Si (Photowatt-PWP-201) [21]	16.778	1.03	1.0318	3.2876	1.2057	0.549	48.45	45	8.3 × 10^−6
	Manual	14.57	0.979	—	—	2.196	0.312	—		—
	Previous work [18]	17	1	1	2.3	1.3	0.83	47		6.3 × 10^−6
	Nonlinear fit	14.69	0.979	0.98	10	0.518	0.404	46.83		7 × 10^−5
3	Organic solar cell: ITO/CuPc/PTCBI/Ag [22]	—	—	—	—	—	—	—	20	—
	Manual	1.203	0.00449	—	—	78.59	1.222	—		—
	Previous work [18]	1.2	0.0046	0.0047	0.92	48	1.4	5.8		1.1 × 10^−3
	Nonlinear fit	1.204	0.00449	0.00468	0.918	48.34	1.232	5.74		3.13 × 10^−10
4	Organic solar cell-based p-type NiO: glass/ITO/NiO/P3HT:PCBM/LiF/Al [23]	—	—	—	—	—	—	—	27
	Manual	0.638	0.0113	—	—	6.468	1.757	—		—
	Previous work [10]			0.0117	0.365	1.4	3.96	2.38		—
	Nonlinear fit	0.6406	0.0113	0.0113	0.0747	2.196	2.438	2.08		3.2 × 10^−9
5	Perovskite solar cell: mp-TiO2/CH3NH3PbI [9]	—	—	—	—	—	—	—		—
	Manual	0.944	0.018	—	—	8.687	0.503	—	27	—
	Nonlinear fit	0.938	0.018	0.0182	0.0558	1.115	0.513	2.87		6.36 × 10^−8
6	DSSC [8]	0.704	0.00206	—	0.035	43.8	3.736	2.5	20	—
	Manual	0.708	0.002	—	—	93.27	3.532	—		—
	Nonlinear fit	0.702	0.00206	0.0021	0.0345	38.55	3.402	2.55		1.4 × 10^−10