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A thermally activated and highly miscible dopant for n-type organic thermoelectrics

Author

Listed:
  • Chi-Yuan Yang

    (Peking University)

  • Yi-Fan Ding

    (Peking University)

  • Dazhen Huang

    (Chinese Academy of Sciences)

  • Jue Wang

    (Peking University)

  • Ze-Fan Yao

    (Peking University)

  • Chun-Xi Huang

    (Peking University)

  • Yang Lu

    (Peking University)

  • Hio-Ieng Un

    (Peking University)

  • Fang-Dong Zhuang

    (Peking University)

  • Jin-Hu Dou

    (Peking University)

  • Chong-an Di

    (Chinese Academy of Sciences)

  • Daoben Zhu

    (Chinese Academy of Sciences)

  • Jie-Yu Wang

    (Peking University)

  • Ting Lei

    (College of Engineering, Peking University)

  • Jian Pei

    (Peking University)

Abstract

N-doping plays an irreplaceable role in controlling the electron concentration of organic semiconductors thus to improve performance of organic semiconductor devices. However, compared with many mature p-doping methods, n-doping of organic semiconductor is still of challenges. In particular, dopant stability/processability, counterion-semiconductor immiscibility and doping induced microstructure non-uniformity have restricted the application of n-doping in high-performance devices. Here, we report a computer-assisted screening approach to rationally design of a triaminomethane-type dopant, which exhibit extremely high stability and strong hydride donating property due to its thermally activated doping mechanism. This triaminomethane derivative shows excellent counterion-semiconductor miscibility (counter cations stay with the polymer side chains), high doping efficiency and uniformity. By using triaminomethane, we realize a record n-type conductivity of up to 21 S cm−1 and power factors as high as 51 μW m−1 K−2 even in films with thicknesses over 10 μm, and we demonstrate the first reported all-polymer thermoelectric generator.

Suggested Citation

  • Chi-Yuan Yang & Yi-Fan Ding & Dazhen Huang & Jue Wang & Ze-Fan Yao & Chun-Xi Huang & Yang Lu & Hio-Ieng Un & Fang-Dong Zhuang & Jin-Hu Dou & Chong-an Di & Daoben Zhu & Jie-Yu Wang & Ting Lei & Jian Pe, 2020. "A thermally activated and highly miscible dopant for n-type organic thermoelectrics," Nature Communications, Nature, vol. 11(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-17063-1
    DOI: 10.1038/s41467-020-17063-1
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    Cited by:

    1. Miao Xiong & Xin-Yu Deng & Shuang-Yan Tian & Kai-Kai Liu & Yu-Hui Fang & Juan-Rong Wang & Yunfei Wang & Guangchao Liu & Jupeng Chen & Diego Rosas Villalva & Derya Baran & Xiaodan Gu & Ting Lei, 2024. "Counterion docking: a general approach to reducing energetic disorder in doped polymeric semiconductors," Nature Communications, Nature, vol. 15(1), pages 1-10, December.
    2. Jiasheng Liang & Jin Liu & Pengfei Qiu & Chen Ming & Zhengyang Zhou & Zhiqiang Gao & Kunpeng Zhao & Lidong Chen & Xun Shi, 2023. "Modulation of the morphotropic phase boundary for high-performance ductile thermoelectric materials," Nature Communications, Nature, vol. 14(1), pages 1-8, December.

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