Effect of Annealing Process on CH₃NH₃PbI_3-XCl_X Film Morphology of Planar Heterojunction Perovskite Solar Cells with Optimal Compact TiO₂ Layer

Table 1

Photovoltaic performance parameters extracted from reversed J-V curves (Figure 3(b)).

Sample	Jsc/mA·cm^−2	Voc/V	FF/%	PCE/%	Rs/Ω·cm^2
TiO2-1000	15.9	0.55	0.45	4.05	12.98
TiO2-2000	18.3	0.75	0.58	8.12	7.59
TiO2-3000	17.7	0.64	0.58	6.57	9.25