In Situ X‐Ray Study of Drying‐Temperature Influence on the Structural Evolution of Bulk‐Heterojunction Polymer–Fullerene Solar Cells Processed by Doctor‐Blading

In situ X-ray measurements give insight into the effect of substrate temperature on the structural evolution of doctor–bladed poly(3-hexylthiophene):[6,6]-phenyl-C61 butyric acid methyl ester (P3HT:PCBM) blends during the transition from wet to solid. Drying the active layer at lower temperature (10 °C) leads to a better nanomorphology with a finer interpenetrating network, and may be an easy route for the optimization of the performance in doctor–bladed solar cells. Detailed facts of importance to specialist readers are published as ”Supporting Information”. Such documents are peer-reviewed, but not copy-edited or typeset. They are made available as submitted by the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.