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Jordan C. Aguirre, Christopher Arntsen, Samuel Hernandez, Rachel Huber, Alexandre M. Nardes, Merissa Halim, Daniel Kilbride, Yves Rubin, Sarah H. Tolbert, Nikos Kopidakis, Benjamin J. Schwartz and Daniel Neuhauser Understanding Local and Macroscopic Electron Mobilities in the Fullerene Network of Conjugated Polymer-based Solar Cells: Time-Resolved Microwave Conductivity and Theory Advanced Functional Materials 24

Version of Record online: 23 SEP 2013 | DOI: 10.1002/adfm.201301757

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The roles of local and macroscopic electron mobility in conjugated polymer/fullerene BHJ photovoltaics are examined via a combination of density functional theory, flash-photolysis time-resolved microwave conductivity, and space-charge-limit current (SCLC) mobility estimates. The local mobility of different fullerene derivatives (‘shuttlecock’ molecules) is similar, so differences in solar cell efficiency and SCLC mobilities result directly from the different propensities of these molecules to self-assemble on macroscopic length scales.

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