Synthesis and Characterization of Carbazole-Benzothiadiazole-Based Conjugated Polymers for Organic Photovoltaic Cells with Triazole in the Main Chain

Table 2

OPV performances of the polymer: PC₇₁BM OPV cells^a,b.

Active layer	𝐽SC (mA/cm^2)	𝑉OC; (V)	FF; (%)	PCE; (%)
PCz3TB	5.56	0.72	0.39	1.55 (1.54)
PCz3TBTz-1	6.36	0.66	0.41	1.74 (1.69)
PCz3TBTz-2	4.29	0.65	0.35	0.98 (0.94)
PCz3TBTz-3	1.21	0.46	0.32	0.18 (0.17)

aThickness of the active layer was adjusted to 60 nm (blend ratio: polymer : PCBM = 1 : 3).
b The values shown here are for the best device, and the average performances among three samples are also shown in parenthesis.