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Compositing effects for high thermoelectric performance of Cu2Se-based materials

Author

Listed:
  • Zhifang Zhou

    (Tsinghua University)

  • Yi Huang

    (Southern University of Science and Technology
    Hunan University)

  • Bin Wei

    (Tsinghua University
    Henan Polytechnic University)

  • Yueyang Yang

    (Tsinghua University)

  • Dehong Yu

    (Australian Nuclear Science and Technology Organisation)

  • Yunpeng Zheng

    (Tsinghua University)

  • Dongsheng He

    (Southern University of Science and Technology)

  • Wenyu Zhang

    (Tsinghua University)

  • Mingchu Zou

    (Tsinghua University)

  • Jin-Le Lan

    (Beijing University of Chemical Technology)

  • Jiaqing He

    (Southern University of Science and Technology)

  • Ce-Wen Nan

    (Tsinghua University)

  • Yuan-Hua Lin

    (Tsinghua University)

Abstract

Thermoelectric materials can realize direct conversion between heat and electricity, showing excellent potential for waste heat recovery. Cu2Se is a typical superionic conductor thermoelectric material having extraordinary ZT values, but its superionic feature causes poor service stability and low mobility. Here, we reported a fast preparation method of self-propagating high-temperature synthesis to realize in situ compositing of BiCuSeO and Cu2Se to optimize the service stability. Additionally, using the interface design by introducing graphene in these composites, the carrier mobility could be obviously enhanced, and the strong phonon scatterings could lead to lower lattice thermal conductivity. Ultimately, the Cu2Se-BiCuSeO-graphene composites presented excellent thermoelectric properties with a ZTmax value of ~2.82 at 1000 K and a ZTave value of ~1.73 from 473 K to 1000 K. This work provides a facile and effective strategy to largely improve the performance of Cu2Se-based thermoelectric materials, which could be further adopted in other thermoelectric systems.

Suggested Citation

  • Zhifang Zhou & Yi Huang & Bin Wei & Yueyang Yang & Dehong Yu & Yunpeng Zheng & Dongsheng He & Wenyu Zhang & Mingchu Zou & Jin-Le Lan & Jiaqing He & Ce-Wen Nan & Yuan-Hua Lin, 2023. "Compositing effects for high thermoelectric performance of Cu2Se-based materials," Nature Communications, Nature, vol. 14(1), pages 1-9, December.
    • Handle: RePEc:nat:natcom:v:14:y:2023:i:1:d:10.1038_s41467-023-38054-y
    DOI: 10.1038/s41467-023-38054-y
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    References listed on IDEAS

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    1. Kanishka Biswas & Jiaqing He & Ivan D. Blum & Chun-I Wu & Timothy P. Hogan & David N. Seidman & Vinayak P. Dravid & Mercouri G. Kanatzidis, 2012. "High-performance bulk thermoelectrics with all-scale hierarchical architectures," Nature, Nature, vol. 489(7416), pages 414-418, September.
    2. Pengfei Qiu & Matthias T. Agne & Yongying Liu & Yaqin Zhu & Hongyi Chen & Tao Mao & Jiong Yang & Wenqing Zhang & Sossina M. Haile & Wolfgang G. Zeier & Jürgen Janek & Ctirad Uher & Xun Shi & Lidong Ch, 2018. "Suppression of atom motion and metal deposition in mixed ionic electronic conductors," Nature Communications, Nature, vol. 9(1), pages 1-8, December.
    3. Yanzhong Pei & Xiaoya Shi & Aaron LaLonde & Heng Wang & Lidong Chen & G. Jeffrey Snyder, 2011. "Convergence of electronic bands for high performance bulk thermoelectrics," Nature, Nature, vol. 473(7345), pages 66-69, May.
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