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Kristin Schmidt, Christopher J. Tassone, Jeremy R. Niskala, Alan T. Yiu, Olivia P. Lee, Thomas M. Weiss, Cheng Wang, Jean M. J. Fréchet, Pierre M. Beaujuge and Michael F. Toney A Mechanistic Understanding of Processing Additive-Induced Efficiency Enhancement in Bulk Heterojunction Organic Solar Cells Advanced Materials 26

Version of Record online: 31 OCT 2013 | DOI: 10.1002/adma.201303622

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The addition of processing additives is a widely used approach to increase power conversion efficiencies for many organic solar cells. We present how additives change the polymer conformation in the casting solution leading to a more intermixed phase-segregated network structure of the active layer which in turn results in a 5-fold enhancement in efficiency.

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