NaI Doping Effect on Photophysical Properties of Organic-Lead-Halide Perovskite Thin Films by Using Solution Process

Table 1

Detailed parameters for reverse scanning of Sample+0 M, Sample+0.75 M, Sample+0.9 M, and Sample+1.2 M.

Samp^1	Jsc^2 (mA/cm^2)	Voc^3 (mV)	FF^4 (%)	PCE^5 (%)
Sample+0 M	7.50	897	52.00	3.49
Sample+0.75 M	13.91	933	35.35	4.59
Sample+0.9 M	18.11	908	46.35	7.62
Sample+1.2 M	13.11	872	44.93	5.14

1, Na⁺-doped samples; 2, short-circuit photocurrent density; 3, open-circuit voltage; 4, fill factor; 5, power conversion efficiency.