Abstract
Three “double-cable” conjugated polymers with thienopyrroledione-based backbone and perylene bisimide as side units were designed as electron acceptor for polymer-polymer solar cells. The polymers show broad absorption spectra and low-lying frontier energy levels due to both aromatic backbone and side units. The new double-cable polymers can be used as electron acceptor to combine with several electron donors, in which power conversion efficiencies above 3% could be achieved.
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Acknowledgements
This work was supported by the National Key R&D Program of China (2017YFA0204702), the National Natural Science Foundation of China (51773207, 21574138, 51603209, 91633301), the Strategic Priority Research Program of the Chinese Academy of Sciences (XDB12030200), Open Research Fund of State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry of Chinese Academy of Sciences, the Recruitment Program of Global Youth Experts of China, and the Director, Office of Science, Office of Basic Energy Sciences, of the US Department of Energy (DE-AC02-05CH11231).
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A New Strategy for Designing Polymer Electron Acceptors: Electron Rich Conjugated Backbone with Electron-Deficient Side Units
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Yang, F., Wang, X., Feng, G. et al. A new strategy for designing polymer electron acceptors: electronrich conjugated backbone with electron-deficient side units. Sci. China Chem. 61, 824–829 (2018). https://doi.org/10.1007/s11426-018-9241-0
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DOI: https://doi.org/10.1007/s11426-018-9241-0