Fabrication and Optimization of Polymer Solar Cells Based on P3HT:PC₇₀BM System

Table 3

Photovoltaic parameters of the devices with different CILs, measured under 100 mW/cm² illumination (AM 1.5G). The structure of the devices is ITO/PEDOT:PSS/P3HT:PC₇₀BM (200 nm)/Al (with no thermal treatment).

CILs	(mA/cm^2)	(V)		PCE (%)
Al (110 nm)	8.74	0.57	0.54	2.64
LiF (1 nm)/Al (100 nm)	9.60	0.58	0.58	3.23
Ca (5 nm)/Al (100 nm)	10.64	0.59	0.61	3.83