Abstract The conjugated structures of donor–acceptor (D–A) type with sulfur (S), nitrogen (N) and oxygen (O) atoms aid to close packing each other in the backbone by non-covalent interactions. Furthermore, non-covalent interactions are exerted three dimensionally and affect various properties. To know this effects, we introduced different S, N and O contents as benzothiadiazole (BT) and dithienophenazine (DTPz, up or down direction of S) units on each polymer backbone. Among the three polymers, P2 with up direction of S showed an open-circuit voltage (Voc) of 0.90 V, fill factor (FF) of 54.7% and reached best power conversion efficiency (PCE) of 4.8%.

中文翻译：

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非共价相互作用对有机光伏中分子堆积和光伏性能的影响

摘要 供体-受体 (D-A) 型与硫 (S)、氮 (N) 和氧 (O) 原子的共轭结构有助于通过非共价相互作用在主链中相互紧密堆积。此外，非共价相互作用在三个维度上发挥作用并影响各种性质。为了了解这种影响，我们在每个聚合物骨架上引入了不同的 S、N 和 O 含量作为苯并噻二唑 (BT) 和二噻吩吩嗪 (DTPz，S 的向上或向下方向) 单元。在三种聚合物中，S 向上的 P2 的开路电压 (Voc) 为 0.90 V，填充因子 (FF) 为 54.7%，最佳功率转换效率 (PCE) 为 4.8%。