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ACS Publications. Most Trusted. Most Cited. Most Read
Organic Solar Cells with Large Insensitivity to Donor Polymer Molar Mass across All Acceptor Classes

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Download Hi-Res ImageDownload to MS-PowerPointCite This:ACS Appl. Polym. Mater. 2020, 2, 11, 5300-5308
    Article

    Organic Solar Cells with Large Insensitivity to Donor Polymer Molar Mass across All Acceptor Classes
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    • Stephanie Samson
      Stephanie Samson
      Department of Applied Physical Sciences, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
      More by Stephanie Samson
    • Jeromy Rech
      Jeromy Rech
      Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
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      Orcidhttp://orcid.org/0000-0001-7963-9357
    • Lorena Perdigón-Toro
      Lorena Perdigón-Toro
      Institut für Physik und Astronomie, Universität Potsdam, Karl-Liebknecht-Straße 24-25, 14476 Potsdam-Golm, Germany
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    • Zhengxing Peng
      Zhengxing Peng
      Department of Physics and ORaCEL, North Carolina State University, Raleigh, North Carolina 27695, United States
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    • Safa Shoaee
      Safa Shoaee
      Institut für Physik und Astronomie, Universität Potsdam, Karl-Liebknecht-Straße 24-25, 14476 Potsdam-Golm, Germany
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    • Harald Ade
      Harald Ade
      Department of Physics and ORaCEL, North Carolina State University, Raleigh, North Carolina 27695, United States
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    • Dieter Neher
      Dieter Neher
      Institut für Physik und Astronomie, Universität Potsdam, Karl-Liebknecht-Straße 24-25, 14476 Potsdam-Golm, Germany
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      Orcidhttp://orcid.org/0000-0001-6618-8403
    • Martin Stolterfoht
      Martin Stolterfoht
      Institut für Physik und Astronomie, Universität Potsdam, Karl-Liebknecht-Straße 24-25, 14476 Potsdam-Golm, Germany
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      Orcidhttp://orcid.org/0000-0002-4023-2178
    • Wei You*
      Wei You
      Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
      *Email: [email protected]
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      Orcidhttp://orcid.org/0000-0003-0354-1948
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    ACS Applied Polymer Materials

    Cite this: ACS Appl. Polym. Mater. 2020, 2, 11, 5300–5308
    Click to copy citationCitation copied!
    https://doi.org/10.1021/acsapm.0c01041
    Published October 7, 2020
    Copyright © 2020 American Chemical Society
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    Abstract

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    Donor polymer number-average molar mass (Mn) has long been known to influence organic photovoltaic (OPV) performance via changes in both the polymer properties and the resulting bulk heterojunction morphology. The exact nature of these Mn effects varies from system to system, although there is generally some intermediate Mn that results in optimal performance. Interestingly, our earlier work with the difluorobenzotriazole (FTAZ)-based donor polymer, paired with either N2200 (polymer acceptor) or PC61BM (fullerene acceptor), demonstrated <10% variation in power conversion efficiency and a consistent morphology over a large span of Mn (30 kg/mol to over 100 kg/mol). Would such insensitivity to polymer Mn still hold true when prevailing small molecular acceptors were used with FTAZ? To answer this question, we explored the impact of FTAZ Mn on OPVs with ITIC, a high-performance small-molecule fused-ring electron acceptor (FREA). By probing the photovoltaic characteristics of the resulting OPVs, we show that a similar FTAZ Mn insensitivity is also found in the FTAZ:ITIC system. This study highlights a single-donor polymer which, when paired with an archetypal fullerene, polymer, and FREA, results in systems that are largely insensitive to donor Mn. Our results may have implications in polymer batch-to-batch reproducibility, in particular, relaxing the need for tight Mn control during synthesis.

    Copyright © 2020 American Chemical Society

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    Supporting Information

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    The Supporting Information is available free of charge at https://pubs.acs.org/doi/10.1021/acsapm.0c01041.

    • Details regarding polymer synthesis and characterization, device fabrication, GIWAXS and RSoXS measurements (including data for neat FTAZ films), RPV measurements, EL spectra, EQEEL measurements, band gap measurements via CV and EQEPV derivatives, and reduced EQEPV and EL spectra (PDF)

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    Cited By

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    This article is cited by 9 publications.

    1. Huijuan Wang, Songmin Mo, Dongyan Li, Qinghe Wu. Recent Advances of Imide‐Functionalized Polymer Donors for Non‐fullerene Solar Cells †. Chinese Journal of Chemistry 2024, 42 (15) , 1759-1780. https://doi.org/10.1002/cjoc.202300765
    2. Yongrui He, Lijun Huo, Bing Zheng. Advances of batch-variation control for photovoltaic polymers. Nano Energy 2024, 123 , 109397. https://doi.org/10.1016/j.nanoen.2024.109397
    3. Somayeh Kashani, Jeromy James Rech, Tuo Liu, Kyle Baustert, Abbas Ghaffari, Indunil Angunawela, Yuan Xiong, Abay Dinku, Wei You, Kenneth Graham, Harald Ade. Exciton Binding Energy in Organic Polymers: Experimental Considerations and Tuning Prospects. Advanced Energy Materials 2024, 14 (6) https://doi.org/10.1002/aenm.202302837
    4. Elifnaz Sağlamkaya, Mohammad Saeed Shadabroo, Nurlan Tokmoldin, Tanner M. Melody, Bowen Sun, Obaid Alqahtani, Acacia Patterson, Brian A. Collins, Dieter Neher, Safa Shoaee. Key factors behind the superior performance of polymer-based NFA blends. Materials Horizons 2024, 3 https://doi.org/10.1039/D4MH00747F
    5. Jiyeon Oh, Sungwoo Jung, So-Huei Kang, Geunhyung Park, Mingyu Jeong, Seoyoung Kim, Seunglok Lee, Wonjun Kim, Byongkyu Lee, Sang Myeon Lee, Changduk Yang. Highly efficient layer-by-layer large-scale manufacturing of polymer solar cells with minimized device-to-device variations by employing benzothiadiazole-based solid additives. Journal of Materials Chemistry A 2022, 10 (38) , 20606-20615. https://doi.org/10.1039/D2TA04776D
    6. Xiyue Yuan, Yunli Zhao, Tao Zhan, Jiyeon Oh, Jiadong Zhou, Junyu Li, Xiaojing Wang, Zhiqiang Wang, Shuting Pang, Ping Cai, Changduk Yang, Zhicai He, Zengqi Xie, Chunhui Duan, Fei Huang, Yong Cao. A donor polymer based on 3-cyanothiophene with superior batch-to-batch reproducibility for high-efficiency organic solar cells. Energy & Environmental Science 2021, 14 (10) , 5530-5540. https://doi.org/10.1039/D1EE01957K
    7. Jeromy James Rech, Justin Neu, Yunpeng Qin, Stephanie Samson, Jordan Shanahan, Richard F. Josey, Harald Ade, Wei You. Designing Simple Conjugated Polymers for Scalable and Efficient Organic Solar Cells. ChemSusChem 2021, 14 (17) , 3561-3568. https://doi.org/10.1002/cssc.202100910
    8. Doo Hun Kim, Sung Jae Jeon, Yong Woon Han, Young Hoon Kim, Nam Gyu Yang, Hyoung Seok Lee, Doo Kyung Moon. Design and synthesis of the quinacridone-based donor polymers for application to organic solar cells. Journal of Industrial and Engineering Chemistry 2021, 101 , 135-143. https://doi.org/10.1016/j.jiec.2021.06.020
    9. Masayuki Gon, Junko Wakabayashi, Masashi Nakamura, Kazuo Tanaka, Yoshiki Chujo. Controlling Energy Gaps of π‐Conjugated Polymers by Multi‐Fluorinated Boron‐Fused Azobenzene Acceptors for Highly Efficient Near‐Infrared Emission. Chemistry – An Asian Journal 2021, 16 (6) , 696-703. https://doi.org/10.1002/asia.202100037
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    ACS Applied Polymer Materials

    Cite this: ACS Appl. Polym. Mater. 2020, 2, 11, 5300–5308
    Click to copy citationCitation copied!
    https://doi.org/10.1021/acsapm.0c01041
    Published October 7, 2020
    Copyright © 2020 American Chemical Society
    Request reuse permissions

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