Pyrene is a commercial fused-ring unit and has attracted much attention in the field of organic photoelectric functional materials. Herein, two non-fullerene acceptors (NFAs) Py-2H and Py-2F based on pyrene core have been developed. Unlike most others NFAs, Py-2H and Py-2F were synthesized via a simple and easy synthesis method, and this is fundamental for commercialization of organic solar cells (OSCs). Compared with Py-2H, fluorinated Py-2F exhibited narrower optical bandgap of 1.66 eV, better π-π stacking, lower frontier molecular orbital levels, and its PBDB-T:Py-2F blend film exhibited triple electron mobility. As a result, PBDB-T:Py-2F solar cells afforded a decent power conversion efficiency (PCE) of 9.73%, with an open-circuit voltage (V_OC) of 0.92 V, a short circuit current (J_SC) of 15.44 mA/cm² and a fill factor (FF) of 68.22%. As comparison, PBDB-T:Py-2H cell just achieved only one-half PCE of 5.13%. These results demonstrated that NFAs based on fused-ring pyrene core are promising for organic photovoltaic applications due to the simple synthesis, low cost, and decent photovoltaic performance.

芘是一种商业化的稠环单元，在有机光电功能材料领域备受关注。在此，开发了两种基于芘核的非富勒烯受体 (NFAs) Py-2H 和 Py-2F。与大多数其他 NFA 不同，Py-2H 和 Py-2F 是通过简单易行的合成方法合成的，这是有机太阳能电池 (OSC) 商业化的基础。与 Py-2H 相比，氟化 Py-2F 表现出更窄的光学带隙，为 1.66 eV，更好的 π-π 堆叠，更低的前沿分子轨道能级，其 PBDB-T:Py-2F 共混膜表现出三重电子迁移率。因此，PBDB-T:Py-2F 太阳能电池提供了 9.73% 的不错的功率转换效率 (PCE)，开路电压 ( V _OC) 为 0.92 V，短路电流 ( J _SC ) 为 15.44 mA/cm ²，填充因子 (FF) 为 68.22%。相比之下，PBDB-T:Py-2H 电池仅实现了 5.13% 的二分之一 PCE。这些结果表明，基于稠环芘核的 NFAs 由于合成简单、成本低和光伏性能良好，在有机光伏应用中很有前景。