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Enabling low voltage losses and high photocurrent in fullerene-free organic photovoltaics

Author

Listed:
  • Jun Yuan

    (University of California, Los Angeles
    Central South University
    University of California, Los Angeles)

  • Tianyi Huang

    (University of California, Los Angeles)

  • Pei Cheng

    (University of California, Los Angeles)

  • Yingping Zou

    (Central South University)

  • Huotian Zhang

    (Linköping University)

  • Jonathan Lee Yang

    (University of California)

  • Sheng-Yung Chang

    (University of California, Los Angeles)

  • Zhenzhen Zhang

    (Central South University)

  • Wenchao Huang

    (University of California, Los Angeles)

  • Rui Wang

    (University of California, Los Angeles)

  • Dong Meng

    (University of California, Los Angeles
    University of California, Los Angeles)

  • Feng Gao

    (Linköping University)

  • Yang Yang

    (University of California, Los Angeles
    University of California, Los Angeles)

Abstract

Despite significant development recently, improving the power conversion efficiency of organic photovoltaics (OPVs) is still an ongoing challenge to overcome. One of the prerequisites to achieving this goal is to enable efficient charge separation and small voltage losses at the same time. In this work, a facile synthetic strategy is reported, where optoelectronic properties are delicately tuned by the introduction of electron-deficient-core-based fused structure into non-fullerene acceptors. Both devices exhibited a low voltage loss of 0.57 V and high short-circuit current density of 22.0 mA cm−2, resulting in high power conversion efficiencies of over 13.4%. These unconventional electron-deficient-core-based non-fullerene acceptors with near-infrared absorption lead to low non-radiative recombination losses in the resulting organic photovoltaics, contributing to a certified high power conversion efficiency of 12.6%.

Suggested Citation

  • Jun Yuan & Tianyi Huang & Pei Cheng & Yingping Zou & Huotian Zhang & Jonathan Lee Yang & Sheng-Yung Chang & Zhenzhen Zhang & Wenchao Huang & Rui Wang & Dong Meng & Feng Gao & Yang Yang, 2019. "Enabling low voltage losses and high photocurrent in fullerene-free organic photovoltaics," Nature Communications, Nature, vol. 10(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-08386-9
    DOI: 10.1038/s41467-019-08386-9
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    Cited by:

    1. Yuanyuan Jiang & Yixin Li & Feng Liu & Wenxuan Wang & Wenli Su & Wuyue Liu & Songjun Liu & Wenkai Zhang & Jianhui Hou & Shengjie Xu & Yuanping Yi & Xiaozhang Zhu, 2023. "Suppressing electron-phonon coupling in organic photovoltaics for high-efficiency power conversion," Nature Communications, Nature, vol. 14(1), pages 1-12, December.
    2. Yang Bai & Ze Zhang & Qiuju Zhou & Hua Geng & Qi Chen & Seoyoung Kim & Rui Zhang & Cen Zhang & Bowen Chang & Shangyu Li & Hongyuan Fu & Lingwei Xue & Haiqiao Wang & Wenbin Li & Weihua Chen & Mengyuan , 2023. "Geometry design of tethered small-molecule acceptor enables highly stable and efficient polymer solar cells," Nature Communications, Nature, vol. 14(1), pages 1-12, December.
    3. Jiehao Fu & Qianguang Yang & Peihao Huang & Sein Chung & Kilwon Cho & Zhipeng Kan & Heng Liu & Xinhui Lu & Yongwen Lang & Hanjian Lai & Feng He & Patrick W. K. Fong & Shirong Lu & Yang Yang & Zeyun Xi, 2024. "Rational molecular and device design enables organic solar cells approaching 20% efficiency," Nature Communications, Nature, vol. 15(1), pages 1-10, 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. Hongyuan Fu & Jia Yao & Ming Zhang & Lingwei Xue & Qiuju Zhou & Shangyu Li & Ming Lei & Lei Meng & Zhi-Guo Zhang & Yongfang Li, 2022. "Low-cost synthesis of small molecule acceptors makes polymer solar cells commercially viable," Nature Communications, Nature, vol. 13(1), pages 1-9, December.
    6. Jiehao Fu & Patrick W. K. Fong & Heng Liu & Chieh-Szu Huang & Xinhui Lu & Shirong Lu & Maged Abdelsamie & Tim Kodalle & Carolin M. Sutter-Fella & Yang Yang & Gang Li, 2023. "19.31% binary organic solar cell and low non-radiative recombination enabled by non-monotonic intermediate state transition," Nature Communications, Nature, vol. 14(1), pages 1-11, December.
    7. Stephanie J. Boyd & Run Long & Niall J. English, 2022. "Electric Field Effects on Photoelectrochemical Water Splitting: Perspectives and Outlook," Energies, MDPI, vol. 15(4), pages 1-16, February.

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