Table 4.

Molecular weight and photovoltaic properties of OSCs based on polymers 22–24.

compound	R	MW, kDa	VOC, V	JSC, mA/cm2	FF, %	PCE, %
22a	H	45.8	0.87	8.51	61.9	4.58a
22b	F	75.9	1.01	9.11	67.2	6.21a
23a	H	79.2	0.89	9.21	60.0	4.92
23b	F	91.6	1.06	12.58	66.0	8.80
24a	—	not given	0.79	3.34	44.0	1.66
24b	—	not given	0.60	1.08	29.0	0.99

^aAfter annealing at 200 °C.