Exploring Spray-Coating Techniques for Organic Solar Cell Applications

Table 1

Average 𝐽𝑉 characteristics by spraying coating. P1 : PCBM solutions dissolved by CB, DCB and TCB under room temperature and spin coated from DCB. The maximum value of PCE over 8 devices under each condition is given in the last column as Peak PCE.

	Solvent	Voc (V)	Jsc (mA/cm^2)	FF	PCE	Peak PCE
Spray coating	CB	0.946	5.67	0.455	2.37%	2.53%
	DCB	0.960	6.88	0.404	2.68%	3.00%
	TCB	0.902	3.88	0.377	1.31%	1.40%
Spin coating	CB	0.978	2.58	0.564	1.38%	1.42%
	DCB	0.923	7.61	0.496	3.49%	3.72%
Spray coating P3HT	Un-annealed	0.628	4.59	0.316	0.91%
	Annealed	0.624	9.39	0.426	2.5%	2.72%