Optimized “Alloy‐Parallel” Morphology of Ternary Organic Solar Cells

The morphology features of polymer/small molecule/fullerene ternary organic solar cells are investigated. For the first time, simultaneously enhanced face-on molecular packing for both polymer and small-molecule donor materials is observed. This optimized morphology yields an enhanced performance at 40% small-molecule composition. As a service to our authors and readers, this journal provides supporting information supplied by the authors. Such materials are peer reviewed and may be re-organized for online delivery, but are not copy-edited or typeset. Technical support issues arising from supporting information (other than missing files) should be addressed to 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.