Journal of Nanomaterials / 2012 / Article / Fig 4

Research Article

Challenges Found When Patterning Semiconducting Polymers with Electric Fields for Organic Solar Cell Applications

Figure 4

(a) Optical microscopy picture of MEH-PPV/PS bilayer film after EHP processing for 22 hours. PS droplets formed on an underlying MEH-PPV/PS film. (b) Removing PS with the selective solvent cyclohexane reveals that the MEH-PPV film has cracked erratically with no preferred wavelength; black spots indicating polymer degradation could visually be seen in such films.
478296.fig.004a
(a)
478296.fig.004b
(b)

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