Interface Structure Analysis Between C60 and CuPc for Organic Solar Cells

The CuPc crystal structure and molecular orientation on the C₆₀ was investigated by AFM and XRD as preliminary step to clarify the relationship the interface structure and electric property for organic solar cells. It is figure out that the CuPc grows grainy on the C₆₀ by the AFM measurement. The area density of the CuPc grain on the C₆₀/mica became larger, and the grain diameter became smaller with increasing the substrate temperature. By the XRD, it became clear that the CuPc forms alpha-type mainly. The molecular column of deposited CuPc on C₆₀ would be parallel to the substrate surface