Homogenized Poly(3-hexylthiophene)/Methanofullerene Film by Addition of End-Functionalized Compatibilizer and Its Application to Polymer Solar Cells

Table 1

List of ratio of to and actual P3HT/PCBM compositions (1 : 1, theoretically, without compatibilizer) in regions 1, 2, and 3 of the substrate.

	Region 1 (edge)	Region 2	Region 3 (center)
/	1.07	0.91	0.75
P3HT : PCBM	1 : 1.22	1 : 1.04	1 : 0.85