All-Polymer Solar Cells Based on Fully Conjugated Donor-Acceptor Block Copolymers with Poly(naphthalene bisimide) Acceptor Blocks: Device Performance and Thin Film Morphology

Table 1

Results of device performance.

Entry	Compositions^a	Conditions; (solvent/annealing temperature)^b,c	(V)	(mA/cm^2)	FF	PCE (%)^d
1	P3HT:P1	CB/as-spun	0.51	2.12	0.47	0.50
2		CB/100°C	0.54	3.03	0.48	0.79
3		CB/200°C	0.59	3.28	0.62	1.20
4	P3HT:P2	CB/as-spun	0.49	1.60	0.47	0.37
5		CB/100°C	0.53	3.53	0.39	0.74
6		CB/200°C	0.56	4.57	0.50	1.28
7		DCB/200°C	0.59	4.43	0.61	1.60

1 : 1 by weight. ^bCB: chlorobenzene; DCB: o-dichlorobenzene. ^cThermal annealing was carried out under nitrogen atmosphere for 30 minutes. ^dAverage values of eight devices.