New Polymerized Small Molecular Acceptors with Non-Aromatic π-Conjugated Linkers for Efficient All-Polymer Solar Cells

Zhe Zhang; Zhixiang Li; Peiran WangHongbin ChenKangqiao MaYunxin ZhangTainan DuanChenxi LiZhaoyang YaoBin KanXiangjian WanYongsheng Chen

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New Polymerized Small Molecular Acceptors with Non-Aromatic π-Conjugated Linkers for Efficient All-Polymer Solar Cells

机译：New Polymerized Small Molecular Acceptors with Non-Aromatic π-Conjugated Linkers for Efficient All-Polymer Solar Cells

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Developing new polymerized small molecular acceptor (PSMA) is pivotalfor improving the performance of all-polymer solar cells. On the basis ofthis newly developed CH-series small molecule acceptors, two PSMAs arereported herein (namely PZC16 and PZC17, respectively). To reduce themolecular torsion caused by the traditional aromatic π-bridges, non-aromaticconjugated units (ethynyl for PZC16 and vinylene for PZC17) are adopted asthe linkers and their effect on the photo-physical properties as well as thedevice performance are systematically investigated. Both polymer acceptorsexhibit co-planar molecular conformation, along with broad absorptionranges and suitable energy levels. In comparison with the PM6:PZC16film, the PM6:PZC17 film exhibits more uniform phase separation inmorphology with a distinct bi-continuous network and better crystallinity.The PM6:PZC17-binary-based devices exhibit a satisfactory PCE of 16.33%,significantly higher than 9.22% of the PZC16-based devices. Impressively,PM6:PZC17-based large area device (ca. 1 cm2) achieves an excellent PCE of15.14%, which is among the top performance for reported all-polymer solarcells (all-PSCs).

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《Advanced functional materials》 |2023年第22期|2214248.1-2214248.8|共8页
作者
Zhe Zhang; Zhixiang Li; Peiran WangHongbin ChenKangqiao MaYunxin ZhangTainan DuanChenxi LiZhaoyang YaoBin KanXiangjian WanYongsheng Chen;
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State Key Laboratory and Institute of Elemento-Organic ChemistryThe Centre of Nanoscale Science and Technologyand Key Laboratory of Functional Polymer MaterialsRenewable Energy Conversion and Storage Center (RECAST)College of ChemistryNankai UniversityTia;

School of Materials Science and Engineering, National Institutefor Advanced MaterialsNankai UniversityTianjin 300350, China;

Chongqing Institute of Green and Intelligent TechnologyChongqing SchoolUniversity of Chinese Academy of Sciences (UCAS Chongqing)Chinese Academy of SciencesChongqing 400417, China;

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正文语种英语
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all-polymer solar cells; ethynyl units; polymer acceptors; power conversion efficiencies; vinyl units;

New Polymerized Small Molecular Acceptors with Non-Aromatic π-Conjugated Linkers for Efficient All-Polymer Solar Cells

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