Insight into the efficiency-stability-cost balanced organic solar cell based on a polymerized nonfused-ring electron acceptor  

作　　者：Xiaobin Gu Yanan Wei Guanyu Lu Ziyang Han Di Zheng Guanghao Lu Jianqi Zhang Zhixiang Wei Yunhao Cai Xin Zhang Hui Huang 

机构地区：[1]College of Materials Science and Opto-Electronic Technology,Center of Materials Science and Optoelectronics Engineering,CAS Center for Excellence in Topological Quantum Computation,CAS Key Laboratory of Vacuum Physics,University of Chinese Academy of Sciences,Beijing,China [2]Frontier Institute of Science and Technology,Xi’an Jiaotong University,Xi’an,China [3]CAS Key Laboratory of Nanosystem and Hierarchical Fabrication,CAS Center for Excellence in Nanoscience,National Center for Nanoscience and Technology,Beijing,China

出　　处：《Aggregate》2023年第6期172-179,共8页聚集体（英文）

基　　金：NSFC,Grant/Award Numbers:52120105006,52103352,51925306;National Key R&D Program of China,Grant/Award Number:2018FYA 0305800;Youth Innovation Promotion Association of Chinese Academy of Sciences,Grant/Award Number:2022165。

摘　　要：Organic solar cells(OSCs)have attracted extensive attention from both academia and industry in recent years due to their remarkable improvement in power conversion efficiency(PCE).However,the Golden Triangle(the balance of efficiency-stability-cost)required for large-scale industrialization of OSCs still remains a great challenge.Here,a new nonfused-ring electron acceptor(NFREA)BF and its polymerized counterpart PBF were designed and synthesized,and their photovoltaic performance,storage stability and material cost were systematically investigated.When blended with a widely-used polymer donor PBDB-T,the PBFbased all-polymer solar cell(all-PSC)displayed a record high PCE of 12.61%for polymerized NFREAs(PNFREAs)with an excellent stability(95.2%of initial PCE after 800 h storage),superior to the BF counterpart.Impressively,PBF-based allPSC possesses the highest industrial figure-of-merit(i-FOM)value of 0.309 based on an efficiency-stability-cost evaluation,in comparison to several representative OSC systems(such as PM6:Y6 and PBDB-T:PZ1).This work provides an insight into the balance of efficiency,stability,and cost,and also indicates that the PNFREAs are promising materials toward the commercial application of OSCs.

关 键 词：all-polymer solar cells efficiency-stability-cost balance noncovalently conformational locks organic solar cell polymerized nonfused-ring electron acceptors 

分 类 号：O63[理学—高分子化学]