Porphyrin-incorporated 2D D-A polymers with over 8.5% polymer solar cell efficiency.
basic_science · Level V
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- Record sourced from PubMed, PMID 24890183.
- Also identified by DOI 10.1002/adma.201401345.
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Abstract
A copolymerization strategy is developed to utilize porphyrin as a complementary light-harvesting unit (LHU) in D-A polymers. For polymer solar cells (PSCs), the presence of LHUs increases the short-circuit current density (Jsc ) without sacrificing the open-circuit voltage (Voc ) and fill factor (FF). Up to 8.0% power conversion efficiency (PCE) is delivered by PPor-2:PC71 BM single-junction PSCs. A PCE of 8.6% is achieved when a C-PCBSD cathodic interlayer is introduced.