Since the first bilayer-structured organic solar cells (OSCs) in 1986, fullerenes and their derivatives have dominated the landscape for two decades due to their unique properties. In recent years, the breakthrough in nonfullerene acceptors (NFAs) was mainly attributed to the development of fused-ring electron acceptors (FREAs), whose photovoltaic performance surpassed that of fullerene derivatives. Through the unremitting efforts of the whole community, the power conversion efficiencies (PCEs) have surpassed 19% in FREA-based OSCs. However, FREAs generally suffered from complex synthetic approaches and high product costs, which hindered large-scale production. Therefore, many researchers are seeking a new type of NFA to achieve cost-effective, highly efficient OSCs.

中文翻译：

---

非共价构象锁实现低成本非稠环电子受体

自 1986 年第一个双层结构有机太阳能电池 (OSC) 诞生以来，富勒烯及其衍生物凭借其独特的性能在该领域占据主导地位长达二十年。近年来，非富勒烯受体（NFA）的突破主要归功于稠环电子受体（FREA）的发展，其光伏性能超越了富勒烯衍生物。经过整个社区的不懈努力，基于FREA的OSC的功率转换效率（PCE）已经超过19%。然而，FREA普遍存在合成方法复杂、产品成本高等问题，阻碍了大规模生产。因此，许多研究人员正在寻求一种新型的NFA来实现具有成本效益、高效的OSC。