A Universal Fluorinated Polymer Acceptor Enables All-Polymer Solar Cells with >15% Efficiency
Peng F, An K, Zhong W, Li Z, Ying L, Li N, Huang Z, Zhu C, Fan B, Huang F, Cao Y (2020)
Publication Type: Journal article
Publication year: 2020
Journal
Pages Range: 3702-3707
DOI: 10.1021/acsenergylett.0c02053
Abstract
While great progress has been achieved in all-polymer solar cells (all-PSCs), the efficiency of all-PSCs is primarily limited by polymer acceptors that lack a high extinction coefficient, high electron mobility, and good compatibility with polymer donors. Here we designed and developed a polymer acceptor PFA1 based on a non-fullerene acceptor framework with a fluorine substituent on the 1,1-dicyanomethylene-3-indanone unit. In combination with an electron-donating polymer, PTzBI-oF, the blend film presents an extended and intensified absorption profile, enhanced electron mobility, and favorable film morphology. The optimized all-PSCs exhibit a remarkably high efficiency of 15.11%, which is, to the best of our knowledge, the highest performance yet reported for an all-PSC. Of particular importance is the applicability of PFA1 as a universal polymer acceptor with a range of polymer donors to achieve impressively high efficiencies. These properties enable a new molecular design strategy for the construction of polymer acceptors toward applications in high-performance all-PSCs.
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China (CN)How to cite
APA:
Peng, F., An, K., Zhong, W., Li, Z., Ying, L., Li, N.,... Cao, Y. (2020). A Universal Fluorinated Polymer Acceptor Enables All-Polymer Solar Cells with >15% Efficiency. ACS Energy Letters, 3702-3707. https://doi.org/10.1021/acsenergylett.0c02053
MLA:
Peng, Feng, et al. "A Universal Fluorinated Polymer Acceptor Enables All-Polymer Solar Cells with >15% Efficiency." ACS Energy Letters (2020): 3702-3707.
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