Organic solar cells (OSCs) based on non-fullerene acceptors (NFAs) have developed very fast in recent years. A proper balance among power conversion efficiency (PCE), stability, and production cost needs further elaboration. Here we investigate the industrial viability of highly efficient OSCs based on several representative NFAs. The most stable OSCs exhibit PCE of ∼8% along with extrapolated T₈₀ lifetime (80% of the initial PCE) of over 11,000 hr under equivalent 1 sun illumination, which would lead to a very impressive operational lifetime approaching 10 years. Photo-stability is strongly dependent on the end-group and side-chain engineering of the NFAs. Breaking of conjugation during photo-aging leads to increased energetic traps. Fluorination of the end-group stabilizes molecules against light soaking, while adding methyl groups shows an opposite trend. Side-chain modification can significantly influence the morphological stability. Reducing synthetic complexity of this class of NFAs will ultimately push the organic photovoltaics technology into real-life applications.

近年来，基于非富勒烯受体（NFA）的有机太阳能电池（OSC）的发展非常迅速。功率转换效率（PCE），稳定性和生产成本之间的适当平衡需要进一步阐述。在这里，我们基于几个代表性的NFA调查高效OSC的工业可行性。最稳定的OSC表现出约8％的PCE以及外推的T ₈₀在相同的1次日光照射下，使用寿命（初始PCE的80％）超过11,000小时，这将导致非常可观的使用寿命，接近10年。光稳定性在很大程度上取决于NFA的端基和侧链工程。光老化过程中结合的破坏导致能量陷阱的增加。端基的氟化可稳定分子使其免受光浸泡，而添加甲基则显示出相反的趋势。侧链修饰可显着影响形态稳定性。降低此类NFA的合成复杂性最终将把有机光伏技术推向实际应用。