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Printable and stable all-polymer solar cells based on non-conjugated polymer acceptors with excellent mechanical robustness

查看全文 作　　者：Dong [1]Chen;Siqi [1]Liu;Xiaotian [1]Hu;Feiyan [1]Wu;Jiabin [1]Liu;Kangkang [3]Zhou;Long [3]Ye;Lie [1]Chen;Yiwang [1,2]Chen 高影响力作者 机构地区：[1]College of Chemistry/Institute of Polymers and Energy Chemistry(IPEC),Nanchang University,Nanchang 330031,China;[2]Institute of Advanced Scientific Research(iASR),Key Laboratory of Functional Organic Small Molecules for Ministry of Education,Jiangxi Normal University,Nanchang 330022,China;[3]Tianjin Key Laboratory of Molecular Optoelectronic Science,Tianjin University,Collaborative Innovation Center of Chemical Science and Engineering(Tianjin),Tianjin 300072,China高影响力机构 出　　处：《Science China Chemistry》索引2022年第65卷第1期,共8页高影响力期刊 基　　金：supported by the National Natural Science Foundation of China(51673092,51973087,21762029,51833004,51425304)。 摘　　要：All-polymer solar cells(all-PSCs)trigger enormous commercial applications,and great progress has been made in recent years.However,from small-area devices to large-area modules,the poor adaption of the materials for printing methods and the large efficiency loss are still great challenges.Herein,three novel non-conjugated polymer acceptors(PTH-Y,PTClm-Yand PTClo-Y)are developed for all-PSCs.It can be found that non-conjugated polymer acceptors can effectively minimize the technique and efficiency gaps between small-area spin-coating and large-area blade-printing method,which can facilitate the preparation of large-area flexible device.By directly inheriting the spin-coating condition,the blade-coating processed device based on PTCloY achieves an impressive power conversion efficiency(PCE)of 12.42%,comparable to the spin-coating processed one(12.74%).Such a non-conjugated polymer system also can well tolerate large-scale preparation and flexible substrate.Notable PCE of 11.94%for large-area rigid device and 11.56%for large-area flexible device are obtained,which is the highest value for large-area flexible all-PSCs fabricated by blade-coating.In addition,the non-conjugated PTClo-Y-based devices show excellent thermal stability and mechanical robustness.These results demonstrate that the non-conjugated polymer acceptors are potential candidates for the fabrication of highly-efficient,large-area and robust flexible all-PSCs by printing methods. 关 键 词：all-polymer solar cells non-conjugated polymer acceptor lager-area device printing mechanical robustness
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