Figure 4 | Scientific Reports

Figure 4

From: Morphology and transport characterization of solution-processed rubrene thin films on polymer-modified substrates

Figure 4

Polarized optical microscopy (POM) (a1, b1, c1) and atomic force microscopy (AFM) (a2, b2, c2) images of PLA/rubrene crystal films obtained by spin-coating the rubrene solution on a 12.6 nm PLA modified FTO wafer (a1, a2), a 22.2 nm PLA modified FTO wafer (b1, b2), and a 57.2 nm PLA modified FTO wafer (c1, c2) after the solvent vapor annealing procedure (the PLA films with different thickness were fabricated by spin-coating the different concentration PLA solutions on fluorine-doped tin-oxide (FTO) coated glass wafers, respectively).

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