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Monamie Sanyal, Benjamin Schmidt-Hansberg, Michael F. G. Klein, Alexander Colsmann, Carmen Munuera, Alexei Vorobiev, Uli Lemmer, Wilhelm Schabel, Helmut Dosch and Esther Barrena In Situ X-Ray Study of Drying-Temperature Influence on the Structural Evolution of Bulk-Heterojunction Polymer–Fullerene Solar Cells Processed by Doctor-Blading Advanced Energy Materials 1

Article first published online: 15 APR 2011 | DOI: 10.1002/aenm.201100007

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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.

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