Figure 2 | NPG Asia Materials

Figure 2

From: Highly anisotropic P3HT films with enhanced thermoelectric performance via organic small molecule epitaxy

Figure 2

(a) SEM image of DC-P3HT film. The film displays grain structure consisting of tiny particles without any specific orientation. (b) SEM image of TCB-treated P3HT film. The film shows fiber structure with diameter of ~100–200 nm and closely arranged in one direction. All the fibers were composed of piles of tiny particles stacked in the direction of the fiber axis. (c) AFM image of phase-mode of DC-P3HT. (d) AFM image of phase-mode of TCB-treated P3HT. There are more crystalline regions (the bright area in the phase-mode images) in the TCB-treated P3HT film than in the DC-P3HT film.

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