A non-fullerene small molecule as efficient electron acceptor in organic bulk heterojunction solar cells.
basic_science · Level V
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- Record sourced from PubMed, PMID 22249903.
- Also identified by DOI 10.1002/adma.201103927.
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Abstract
A novel n-type small molecule FFI-1 was synthesized as the electron acceptor to replace PCBM in solution-processed organic BHJ solar cells. Its LUMO level (around -3.5 eV) both matches the work function of the cathode and increases V(OC) of the devices, making it a promising acceptor candidate. With P3HT: FFI-1 (1:2 w/w) as active layer and LiF/Al as the cathode, the best power conversion efficiency (PCE) reaches 1.86%.
Medical subject headings
- Fluorenes
- Phthalimides
- Solar Energy