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Polymer/molecular semiconductor all-organic composites for high-temperature dielectric energy storage

Author

Listed:
  • Chao Yuan

    (Tsinghua University)

  • Yao Zhou

    (Tsinghua University)

  • Yujie Zhu

    (Tsinghua University)

  • Jiajie Liang

    (Tsinghua University)

  • Shaojie Wang

    (Tsinghua University)

  • Simin Peng

    (Tsinghua University)

  • Yushu Li

    (Tsinghua University)

  • Sang Cheng

    (Tsinghua University)

  • Mingcong Yang

    (Tsinghua University)

  • Jun Hu

    (Tsinghua University)

  • Bo Zhang

    (Tsinghua University)

  • Rong Zeng

    (Tsinghua University)

  • Jinliang He

    (Tsinghua University)

  • Qi Li

    (Tsinghua University)

Abstract

Dielectric polymers for electrostatic energy storage suffer from low energy density and poor efficiency at elevated temperatures, which constrains their use in the harsh-environment electronic devices, circuits, and systems. Although incorporating insulating, inorganic nanostructures into dielectric polymers promotes the temperature capability, scalable fabrication of high-quality nanocomposite films remains a formidable challenge. Here, we report an all-organic composite comprising dielectric polymers blended with high-electron-affinity molecular semiconductors that exhibits concurrent high energy density (3.0 J cm−3) and high discharge efficiency (90%) up to 200 °C, far outperforming the existing dielectric polymers and polymer nanocomposites. We demonstrate that molecular semiconductors immobilize free electrons via strong electrostatic attraction and impede electric charge injection and transport in dielectric polymers, which leads to the substantial performance improvements. The all-organic composites can be fabricated into large-area and high-quality films with uniform dielectric and capacitive performance, which is crucially important for their successful commercialization and practical application in high-temperature electronics and energy storage devices.

Suggested Citation

  • Chao Yuan & Yao Zhou & Yujie Zhu & Jiajie Liang & Shaojie Wang & Simin Peng & Yushu Li & Sang Cheng & Mingcong Yang & Jun Hu & Bo Zhang & Rong Zeng & Jinliang He & Qi Li, 2020. "Polymer/molecular semiconductor all-organic composites for high-temperature dielectric energy storage," Nature Communications, Nature, vol. 11(1), pages 1-8, December.
  • Handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-17760-x
    DOI: 10.1038/s41467-020-17760-x
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    Cited by:

    1. Zhaoqi Liu & Yunzhi Huang & Yuxiang Shi & Xinglin Tao & Hezhi He & Feida Chen & Zhao-Xia Huang & Zhong Lin Wang & Xiangyu Chen & Jin-Ping Qu, 2022. "Fabrication of triboelectric polymer films via repeated rheological forging for ultrahigh surface charge density," Nature Communications, Nature, vol. 13(1), pages 1-10, December.
    2. Rui Lu & Jian Wang & Tingzhi Duan & Tian-Yi Hu & Guangliang Hu & Yupeng Liu & Weijie Fu & Qiuyang Han & Yiqin Lu & Lu Lu & Shao-Dong Cheng & Yanzhu Dai & Dengwei Hu & Zhonghui Shen & Chun-Lin Jia & Ch, 2024. "Metadielectrics for high-temperature energy storage capacitors," Nature Communications, Nature, vol. 15(1), pages 1-8, December.
    3. Rishi Gurnani & Stuti Shukla & Deepak Kamal & Chao Wu & Jing Hao & Christopher Kuenneth & Pritish Aklujkar & Ashish Khomane & Robert Daniels & Ajinkya A. Deshmukh & Yang Cao & Gregory Sotzing & Rampi , 2024. "AI-assisted discovery of high-temperature dielectrics for energy storage," Nature Communications, Nature, vol. 15(1), pages 1-10, December.
    4. Rui Wang & Yujie Zhu & Jing Fu & Mingcong Yang & Zhaoyu Ran & Junluo Li & Manxi Li & Jun Hu & Jinliang He & Qi Li, 2023. "Designing tailored combinations of structural units in polymer dielectrics for high-temperature capacitive energy storage," Nature Communications, Nature, vol. 14(1), pages 1-11, December.
    5. Qiyan Zhang & Qiaohui Xie & Tao Wang & Shuangwu Huang & Qiming Zhang, 2024. "Scalable all polymer dielectrics with self-assembled nanoscale multiboundary exhibiting superior high temperature capacitive performance," Nature Communications, Nature, vol. 15(1), pages 1-9, December.
    6. Kailun Zou & Peijia Bai & Kanghua Li & Fangyuan Luo & Jiajie Liang & Ling Lin & Rujun Ma & Qi Li & Shenglin Jiang & Qing Wang & Guangzu Zhang, 2024. "Electronic cooling and energy harvesting using ferroelectric polymer composites," Nature Communications, Nature, vol. 15(1), pages 1-10, December.
    7. Fan Xu & Yuke Li & Qing Zou & Yu Shuang He & Zijia Shen & Chen Li & Huijuan Zhang & Feipeng Wang & Jian Li & Yu Wang, 2022. "The electric field cavity array effect of 2D nano-sieves," Nature Communications, Nature, vol. 13(1), pages 1-9, December.
    8. Minzheng Yang & Weibin Ren & Zenghui Jin & Erxiang Xu & Yang Shen, 2024. "Enhanced high-temperature energy storage performances in polymer dielectrics by synergistically optimizing band-gap and polarization of dipolar glass," Nature Communications, Nature, vol. 15(1), pages 1-10, December.
    9. Xinhui Li & Bo Liu & Jian Wang & Shuxuan Li & Xin Zhen & Jiapeng Zhi & Junjie Zou & Bei Li & Zhonghui Shen & Xin Zhang & Shujun Zhang & Ce-Wen Nan, 2024. "High-temperature capacitive energy storage in polymer nanocomposites through nanoconfinement," Nature Communications, Nature, vol. 15(1), pages 1-11, December.

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