Media type: E-Article Title: Small‐Molecule Planar‐Mixed Heterojunction Photovoltaic Cells with Fullerene‐Based Electron Filtering Buffers Contributor: Xiao, Xin; Bergemann, Kevin J.; Zimmerman, Jeramy D.; Lee, Kyusang; Forrest, Stephen R. Published: Wiley, 2014 Published in: Advanced Energy Materials, 4 (2014) 7 Language: English DOI: 10.1002/aenm.201301557 ISSN: 1614-6832; 1614-6840 Keywords: General Materials Science ; Renewable Energy, Sustainability and the Environment Origination: Footnote: