Effects of Organic Solvents for Composite Active Layer of PCDTBT/PC₇₁BM on Characteristics of Organic Solar Cell Devices

Table 1

Photovoltaic parameters of the OSC devices with different solvents and different PCDTBT : PC₇₁BM blend ratios.

Solvents	Blend ratio	Thickness  (nm)	𝐽sc  (mA/cm^2)	𝑉oc  (V)	FF	𝜂  (%)
Chloroform	1 : 3	92	4.39	0.90	0.48	1.89
	1 : 4	88	5.78	0.91	0.47	2.49
	1 : 5	86	5.09	0.90	0.56	2.55
	1 : 6	80	3.55	0.91	0.55	1.77
Chlorobenzene	1 : 3	94	5.94	0.91	0.43	2.33
	1 : 4	92	5.55	0.93	0.56	2.91
	1 : 5	88	5.72	0.89	0.55	2.79
	1 : 6	83	4.92	0.91	0.56	2.53
O-dichlorobenzene	1 : 3	93	7.60	0.89	0.53	3.60
	1 : 4	90	8.41	0.90	0.55	4.15
	1 : 5	85	7.36	0.89	0.55	3.56
	1 : 6	78	7.19	0.87	0.55	3.45