Substrate Temperature Effect on Charge Transport Performance of ZnO Electron Transport Layer Prepared by a Facile Ultrasonic Spray Pyrolysis in Polymer Solar Cells

Table 2

Device characteristics of PSCs prepared at different substrate temperatures.

ZnO substrate temperature (°C)	Thickness; (nm)	(V)	(mA/cm^2)	FF; (%)	PCE; (%)	Ω cm^2	Ω cm^2
200	0	0.25	5.49	28.36	0.40	361	63
200	25	0.59	9.64	48.11	2.75	16	357
200	50	0.61	9.26	53.63	3.05	13	454
200	75	0.62	9.18	52.21	2.96	15	556
200	100	0.61	8.64	48.63	2.58	17	400