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Long-range exciton diffusion in molecular non-fullerene acceptors

Author

Listed:
  • Yuliar Firdaus

    (Material Science and Engineering Program (MSE))

  • Vincent M. Le Corre

    (Zernike Institute for Advanced Materials)

  • Safakath Karuthedath

    (Material Science and Engineering Program (MSE))

  • Wenlan Liu

    (Max Planck Institute for Polymer Research)

  • Anastasia Markina

    (Max Planck Institute for Polymer Research)

  • Wentao Huang

    (Imperial College London, South Kensington)

  • Shirsopratim Chattopadhyay

    (Oregon State University)

  • Masrur Morshed Nahid

    (North Carolina State University)

  • Mohamad I. Nugraha

    (Material Science and Engineering Program (MSE))

  • Yuanbao Lin

    (Material Science and Engineering Program (MSE))

  • Akmaral Seitkhan

    (Material Science and Engineering Program (MSE))

  • Aniruddha Basu

    (Material Science and Engineering Program (MSE))

  • Weimin Zhang

    (Material Science and Engineering Program (MSE))

  • Iain McCulloch

    (Material Science and Engineering Program (MSE))

  • Harald Ade

    (North Carolina State University)

  • John Labram

    (Oregon State University)

  • Frédéric Laquai

    (Material Science and Engineering Program (MSE))

  • Denis Andrienko

    (Max Planck Institute for Polymer Research)

  • L. Jan Anton Koster

    (Zernike Institute for Advanced Materials)

  • Thomas D. Anthopoulos

    (Material Science and Engineering Program (MSE))

Abstract

The short exciton diffusion length associated with most classical organic semiconductors used in organic photovoltaics (5-20 nm) imposes severe limits on the maximum size of the donor and acceptor domains within the photoactive layer of the cell. Identifying materials that are able to transport excitons over longer distances can help advancing our understanding and lead to solar cells with higher efficiency. Here, we measure the exciton diffusion length in a wide range of nonfullerene acceptor molecules using two different experimental techniques based on photocurrent and ultrafast spectroscopy measurements. The acceptors exhibit balanced ambipolar charge transport and surprisingly long exciton diffusion lengths in the range of 20 to 47 nm. With the aid of quantum-chemical calculations, we are able to rationalize the exciton dynamics and draw basic chemical design rules, particularly on the importance of the end-group substituent on the crystal packing of nonfullerene acceptors.

Suggested Citation

  • Yuliar Firdaus & Vincent M. Le Corre & Safakath Karuthedath & Wenlan Liu & Anastasia Markina & Wentao Huang & Shirsopratim Chattopadhyay & Masrur Morshed Nahid & Mohamad I. Nugraha & Yuanbao Lin & Akm, 2020. "Long-range exciton diffusion in molecular non-fullerene acceptors," Nature Communications, Nature, vol. 11(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-19029-9
    DOI: 10.1038/s41467-020-19029-9
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    Cited by:

    1. Samuele Giannini & Wei-Tao Peng & Lorenzo Cupellini & Daniele Padula & Antoine Carof & Jochen Blumberger, 2022. "Exciton transport in molecular organic semiconductors boosted by transient quantum delocalization," Nature Communications, Nature, vol. 13(1), pages 1-13, December.
    2. Michael B. Price & Paul A. Hume & Aleksandra Ilina & Isabella Wagner & Ronnie R. Tamming & Karen E. Thorn & Wanting Jiao & Alison Goldingay & Patrick J. Conaghan & Girish Lakhwani & Nathaniel J. L. K., 2022. "Free charge photogeneration in a single component high photovoltaic efficiency organic semiconductor," Nature Communications, Nature, vol. 13(1), pages 1-10, December.
    3. Hongmei Zhuo & Xiaojun Li & Jinyuan Zhang & Can Zhu & Haozhe He & Kan Ding & Jing Li & Lei Meng & Harald Ade & Yongfang Li, 2023. "Precise synthesis and photovoltaic properties of giant molecule acceptors," Nature Communications, Nature, vol. 14(1), pages 1-14, December.
    4. Yanan Shi & Yilin Chang & Kun Lu & Zhihao Chen & Jianqi Zhang & Yangjun Yan & Dingding Qiu & Yanan Liu & Muhammad Abdullah Adil & Wei Ma & Xiaotao Hao & Lingyun Zhu & Zhixiang Wei, 2022. "Small reorganization energy acceptors enable low energy losses in non-fullerene organic solar cells," Nature Communications, Nature, vol. 13(1), pages 1-10, December.
    5. Yunhao Cai & Qian Li & Guanyu Lu & Hwa Sook Ryu & Yun Li & Hui Jin & Zhihao Chen & Zheng Tang & Guanghao Lu & Xiaotao Hao & Han Young Woo & Chunfeng Zhang & Yanming Sun, 2022. "Vertically optimized phase separation with improved exciton diffusion enables efficient organic solar cells with thick active layers," Nature Communications, Nature, vol. 13(1), pages 1-11, December.
    6. Zhen Wang & Yu Guo & Xianzhao Liu & Wenchao Shu & Guangchao Han & Kan Ding & Subhrangsu Mukherjee & Nan Zhang & Hin-Lap Yip & Yuanping Yi & Harald Ade & Philip C. Y. Chow, 2024. "The role of interfacial donor–acceptor percolation in efficient and stable all-polymer solar cells," Nature Communications, Nature, vol. 15(1), pages 1-10, December.
    7. Sri Harish Kumar Paleti & Sandra Hultmark & Jianhua Han & Yuanfan Wen & Han Xu & Si Chen & Emmy Järsvall & Ishita Jalan & Diego Rosas Villalva & Anirudh Sharma & Jafar. I. Khan & Ellen Moons & Ruipeng, 2023. "Hexanary blends: a strategy towards thermally stable organic photovoltaics," Nature Communications, Nature, vol. 14(1), pages 1-9, December.
    8. Guilong Cai & Yuhao Li & Yuang Fu & Hua Yang & Le Mei & Zhaoyang Nie & Tengfei Li & Heng Liu & Yubin Ke & Xun-Li Wang & Jean-Luc Brédas & Man-Chung Tang & Xiankai Chen & Xiaowei Zhan & Xinhui Lu, 2024. "Deuteration-enhanced neutron contrasts to probe amorphous domain sizes in organic photovoltaic bulk heterojunction films," Nature Communications, Nature, vol. 15(1), pages 1-12, December.
    9. Victor Druet & David Ohayon & Christopher E. Petoukhoff & Yizhou Zhong & Nisreen Alshehri & Anil Koklu & Prem D. Nayak & Luca Salvigni & Latifah Almulla & Jokubas Surgailis & Sophie Griggs & Iain McCu, 2023. "A single n-type semiconducting polymer-based photo-electrochemical transistor," Nature Communications, Nature, vol. 14(1), pages 1-13, December.

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