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    Vertical Stratification Engineering of Insulating Poly(aryl ether)s Enables 18.6% Organic Solar Cells with Improved Stability

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    ACS Energy Lett. 2022, 7, 2927–2936 (accepted manuscript) .pdf
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    Accepted Manuscript
    Embargo End Date:
    2023-08-11
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    Type
    Article
    Authors
    Han, Jianhua cc
    Xu, Han
    Paleti, Sri Harish Kumar cc
    Wen, Yuanfan
    Wang, Jianxiao
    Wu, Yuanwei
    Bao, Feng cc
    Yang, Chunming
    Li, Xiangyu
    Jian, Xigao cc
    Wang, Jinyan cc
    Karuthedath, Safakath cc
    Gorenflot, Julien cc
    Laquai, Frédéric cc
    Baran, Derya cc
    Bao, Xichang cc
    KAUST Department
    KAUST Solar Center (KSC)
    Physical Science and Engineering (PSE) Division
    Material Science and Engineering
    Material Science and Engineering Program
    Applied Physics
    KAUST Grant Number
    OSR-CARF/CCF-3079
    Date
    2022-08-11
    Embargo End Date
    2023-08-11
    Permanent link to this record
    http://hdl.handle.net/10754/680307
    
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    Abstract
    Control of the preferred vertical phase distribution of the components in the photoactive layer is of vital importance to improve the device performance and stability of organic photovoltaics (OPVs). Herein, a universal sequential-deposition strategy is demonstrated to realize optimal vertical phase distribution by employing orthogonal solvents and synergistically integrating ternary/quaternary compositions consisting of insulating heat-resistant poly(aryl ether)s as the third/fourth component in a photoactive layer. The selective segregation of poly(aryl ether)s in the middle of the active layer enhances molecular packing of the photovoltaic materials and improves the charge transport and extraction properties. A maximum efficiency of 18.6% is achieved for PM6:BTP-eC9:PC71BM:poly(aryl ether)-based quaternary solar cells, with photo/thermal stability that is better than that of devices without poly(aryl ether). This work provides an effective approach for achieving stable and efficient OPVs with expected topology by tuning molecular packing behaviors and the vertical segregation of multicomponents in photovoltaic layers.
    Citation
    Han, J., Xu, H., Paleti, S. H. K., Wen, Y., Wang, J., Wu, Y., Bao, F., Yang, C., Li, X., Jian, X., Wang, J., Karuthedath, S., Gorenflot, J., Laquai, F., Baran, D., & Bao, X. (2022). Vertical Stratification Engineering of Insulating Poly(aryl ether)s Enables 18.6% Organic Solar Cells with Improved Stability. ACS Energy Letters, 2927–2936. https://doi.org/10.1021/acsenergylett.2c01586
    Sponsors
    The authors are grateful to the National Natural Science Foundation of China (22005324, 52073122, 51873227, and U1932118). J.W. thanks the Joint Research Fund Liaoning - Shenyang National Laboratory for Materials Science (2019JH3/30100026). J.H. acknowledges project ZR2020QE082 supported by Shandong Provincial Natural Science Foundation, the Shandong Provincial Post-Doctoral Foundation, and the Opening Foundation of Key Laboratory of Laser & Infrared System (Shandong University), Ministry of Education. X.B. acknoledges project SEIS202108 supported by Shandong Energy Institute. The authors also thank beamline BL16B1 of Shanghai Synchrotron Radiation Facility for providing beam time. We acknowledge the use of KAUST Solar Center and thank D. R. Villalva and Y. Zhang for performing the AFM measurements. D.B., J.G., and J.H. acknowledge support by King Abdullah University of Science and Technology (KAUST) Office of Sponsored Research (OSR) under Award No. OSR-CARF/CCF-3079.
    Publisher
    American Chemical Society (ACS)
    Journal
    ACS Energy Letters
    DOI
    10.1021/acsenergylett.2c01586
    Additional Links
    https://pubs.acs.org/doi/10.1021/acsenergylett.2c01586
    ae974a485f413a2113503eed53cd6c53
    10.1021/acsenergylett.2c01586
    Scopus Count
    Collections
    Articles; Applied Physics; Physical Science and Engineering (PSE) Division; Material Science and Engineering Program; KAUST Solar Center (KSC)

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