Dielectric constant engineering of nonfullerene acceptors enables a record fill factor of 83.58% and a high efficiency of 20.80% in organic solar cells

作者：Junwei Dong, Yinfeng Li, Chentong Liao, Xiaopeng Xu, Liyang Yu, Ruipeng Li, Qiang Peng · 发表于：Energy & Environmental Science · 年份：2025 · DOI：10.1039/d5ee00101c · 被引用次数：112 · 研究领域：Organic Electronics and Photovoltaics、Molecular Junctions and Nanostructures、Fullerene Chemistry and Applications

Two nonfullerene acceptors with trifluoromethyl end-capped alkyl side chains increased the dielectric constant and optimized optoelectronic properties, achieving an impressive power conversion efficiency of 20.80% in organic solar cells.