Efficient Polymer Solar Cells Based on a Low Bandgap Semi‐crystalline DPP Polymer‐PCBM Blends
- 12 June 2012
- journal article
- research article
- Published by Wiley in Advanced Materials
- Vol. 24 (29), 3947-3951
- https://doi.org/10.1002/adma.201200902
Abstract
Solar cell performance and morphology characterization of a diketopyrrolopyrrole‐based low bandgap polymer is reported. The polymer adopts an H‐type aggregation and solvent mixture processing gives a better morphology. The morphology evolution is characterized by combined GIXD and GISAXS experiments and a four step morphology development mechanism is proposed.Keywords
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