Kang Wei Chou, Buyi Yan, Ruipeng Li, Er Qiang Li, Kui Zhao, Dalaver H. Anjum, Steven Alvarez, Robert Gassaway, Alan Biocca, Sigurdur T. Thoroddsen, Alexander Hexemer and Aram Amassian Spin-Cast Bulk Heterojunction Solar Cells: A Dynamical Investigation Advanced Materials 25
Spin-coating is extensively used in the lab-based manufacture of organic solar cells, including most of the record-setting solution-processed cells. We report the first direct observation of photoactive layer formation as it occurs during spin-coating. The study provides new insight into mechanisms and kinetics of bulk heterojunction formation, which may be crucial for its successful transfer to scalable printing processes.
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