Enhanced Efficiency of PTB7 : PC₆₁BM Organic Solar Cells by Adding a Low Efficient Polymer Donor

Table 1

Performance parameters of representative curves and maxima PCE values of the OPV cells.

PTB7 : pBTTT : PC61BM	(mA⋅cm^−2)	(V)	FF	PCE (%); rep./max	(Ω⋅cm^2)	(Ω⋅cm^2)
0 : 1 : 2	2.59	0.50	0.44	0.57/0.66	457	40
0.10 : 0.90 : 2	4.15	0.55	0.39	0.90/1.08	311	50
0.20 : 0.80 : 2	5.27	0.54	0.39	1.11/1.24	1228	31
0.50 : 0.50 : 2	10.56	0.62	0.51	3.42/3.89	493	18
0.75 : 0.25 : 2	13.25	0.69	0.50	4.73/5.50	592	15
0.90 : 0.10 : 2	11.03	0.71	0.49	3.87/4.21	309	16
1 : 0 : 2	13.17	0.77	0.40	4.00/4.42	222	127