fig2

Figure 2. (A) Schematic illustration of the P3HT polymer chain orientation and the process of aligning the polymer chain to chain-on orientation. The scale bar denotes 10 µm; (B) The current-voltage characteristics and the extracted charge carrier mobility of the aligned P3HT in comparison to conventional smooth film. Images reproduced with permission^[28]. Copyright 2016, Wiley-VCH. P3HT: Poly(3-hexylthiophene).