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He Wang, Manas Shah, Venkat Ganesan, Michael L. Chabinyc and Yueh-Lin Loo Tail State-Assisted Charge Injection and Recombination at the Electron-Collecting Interface of P3HT:PCBM Bulk-Heterojunction Polymer Solar Cells Advanced Energy Materials 2

Version of Record online: 24 JUL 2012 | DOI: 10.1002/aenm.201200361

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The lamination of P3HT and PCBM thin films at the electron- and hole-collecting interfaces, respectively, in bulk-heterojunction polymer solar cells disrupts Jsc to different extents. The presence of a broad distribution of tail states in P3HT facilitates recombination at the electron-collecting interface and subsequent injection of holes from the cathode; devices having P3HT at the electron-collecting interface can thus maintain high Jsc.

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