A halogenated volatile additive strategy for regulating crystallization kinetics and enabling 20.40% efficiency polymer solar cells with low non-radiative recombination energy loss

作者：Changjiang Li, Min Deng, Haonan Chen, Yuwei Duan, Chentong Liao, Zeqin Chen, Qiang Peng · 发表于：Energy & Environmental Science · 年份：2025 · DOI：10.1039/d5ee01368b · 被引用次数：30 · 研究领域：Organic Electronics and Photovoltaics、Conducting polymers and applications、Synthesis and properties of polymers

Increasing the weight of halogen atoms of additives results in balanced crystallization and optimal morphology with suppressed energy disorder, realizing 20.40% efficiency with a Δ E non-rad of 0.189 eV and E loss of 0.500 eV in polymer solar cells.