Figure 2 | Scientific Reports

Figure 2

From: Tuning Fullerene Intercalation in a Poly (thiophene) derivative by Controlling the Polymer Degree of Self-Organisation

Figure 2

(a) XRD pattern (out-of-plane) of PBTTT pure deposited via spin-casting, slow-drying and drop-casting. The <100> peak (at ~24° for all the films) and its higher orders refer to the lamellar stacking (see ref. 12). None of the pure PBTTT films was thermally annealed. (b) XRD pattern (out-of-plane) of PBTTT/PCBM films obtained by sequentially depositing the PCBM on top of the three different polymer films (PBTTT spin-cast, slow-dried and drop cast). Although perfect bilayers are not formed due to PCBM diffusion and intercalation in the polymer layer, we refers to these samples as bilayer “PBTTT spin-cast”, “PBTTT slow-dried” and “PBTTT drop-cast” for simplicity. Note that all the bilayers were annealed at 185 °C for 10 minutes.

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