T. Erb, U. Zhokhavets, G. Gobsch, S. Raleva, B. Stühn, P. Schilinsky, C. Waldauf and C. J. Brabec Correlation Between Structural and Optical Properties of Composite Polymer/Fullerene Films for Organic Solar Cells Advanced Functional Materials 15
Structural properties of films of poly- [3-hexylthiophene-2,5-diyl]/[6,6]-phenyl C61 butyric acid methyl ester (P3HT/PCBM) have been studied by X-ray diffraction. P3HT crystallites with a-axis orientation (see Figure) were observed, whereas PCBM crystallites were not found. The influence of P3HT crystallinity on the performance of P3HT/PCBM solar cells is discussed.
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