Table 3.

OPV device performance.^a

Compound	Concentration (mg/mL)b	Jsc (mA/cm2)c	Voc (V)d	FF (%)e	η(%)f
2	6	4.40 (4.55)	0.94 (0.94)	48 (49)	2.02 (2.10)
	10	5.10 (5.30)	0.96 (0.96)	49 (51)	2.40 (2.58)
	15	3.90 (4.00)	0.92 (0.92)	40 (41)	1.42 (1.50)
	20	3.05 (3.20)	0.90 (0.90)	37 (38)	1.02 (1.10)
1g	20	6.77	0.87	38	2.25

^aData are the mean for n = 10 devices, and best device data is shown in brackets. ^bThe active layers were spin coated from 1:1 (w/w) solutions of 2:PC₆₁BM at the concentrations shown. ^cShort circuit current. ^dOpen circuit voltage. ^eFill Factor. ^fDevice energy conversion efficiency (AM 1.5). ^gData is from the best device.