Abstract
B←N coordination bond can be used to develop polymer electron acceptors for efficient all-polymer solar cells (all-PSCs). Here, we report a new alternating conjugated polymer containing two building blocks based on B←N unit. The polymer exhibits strong light absorption in the visible range, low-lying LUMO/HOMO energy levels and moderate electron mobility. The resulting all-PSC devices exhibit power conversion efficiencies of 1.50%–2.47%.
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This work was financially supported by the 973 Program (No. 2014CB643504), the National Natural Science Foundation of China (Nos. 51373165, 21574129 and 21404099), the “Thousand Talents Program” of China, the Strategic Priority Research Program of the Chinese Academy of Sciences (No. XDB12010200), and the State Key Laboratory of Supramolecular Structure and Materials in Jilin University (No. sklssm201608).
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Zhao, Ry., Dou, Cd., Liu, J. et al. An alternating polymer of two building blocks based on B←N unit: Non-fullerene acceptor for organic photovoltaics. Chin J Polym Sci 35, 198–206 (2017). https://doi.org/10.1007/s10118-017-1878-9
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DOI: https://doi.org/10.1007/s10118-017-1878-9