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

Table 1

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
125	50	0.56	6.74	43.47	1.64	28	277
150	50	0.60	8.92	47.89	2.55	14	269
200	50	0.61	9.26	53.63	3.05	13	454
250	50	0.62	8.83	50.34	2.75	15	420
300	50	0.62	7.85	51.81	2.56	18	370
Sol-gel	50	0.62	9.37	55.74	3.23	13	769