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Unexpected doping effects on phonon transport in quasi-one-dimensional van der Waals crystal TiS3 nanoribbons

Author

Listed:
  • Chenhan Liu

    (Southeast University
    Nanjing Normal University)

  • Chao Wu

    (Southeast University)

  • Xian Yi Tan

    (Nanyang Technological University
    Technology and Research (A*STAR))

  • Yi Tao

    (Southeast University)

  • Yin Zhang

    (Southeast University)

  • Deyu Li

    (Vanderbilt University)

  • Juekuan Yang

    (Southeast University)

  • Qingyu Yan

    (Nanyang Technological University)

  • Yunfei Chen

    (Southeast University)

Abstract

Doping usually reduces lattice thermal conductivity because of enhanced phonon-impurity scattering. Here, we report unexpected doping effects on the lattice thermal conductivity of quasi-one-dimensional (quasi-1D) van der Waals (vdW) TiS3 nanoribbons. As the nanoribbon thickness reduces from ~80 to ~19 nm, the concentration of oxygen atoms has a monotonic increase along with a 7.4-fold enhancement in the thermal conductivity at room temperature. Through material characterizations and atomistic modellings, we find oxygen atoms diffuse more readily into thinner nanoribbons and more sulfur atoms are substituted. The doped oxygen atoms induce significant lattice contraction and coupling strength enhancement along the molecular chain direction while have little effect on vdW interactions, different from that doping atoms induce potential and structural distortions along all three-dimensional directions in 3D materials. With the enhancement of coupling strength, Young’s modulus is enhanced while phonon-impurity scattering strength is suppressed, significantly improving the phonon thermal transport.

Suggested Citation

  • Chenhan Liu & Chao Wu & Xian Yi Tan & Yi Tao & Yin Zhang & Deyu Li & Juekuan Yang & Qingyu Yan & Yunfei Chen, 2023. "Unexpected doping effects on phonon transport in quasi-one-dimensional van der Waals crystal TiS3 nanoribbons," Nature Communications, Nature, vol. 14(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:14:y:2023:i:1:d:10.1038_s41467-023-41425-0
    DOI: 10.1038/s41467-023-41425-0
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    References listed on IDEAS

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    1. Kedi Wu & Engin Torun & Hasan Sahin & Bin Chen & Xi Fan & Anupum Pant & David Parsons Wright & Toshihiro Aoki & Francois M. Peeters & Emmanuel Soignard & Sefaattin Tongay, 2016. "Unusual lattice vibration characteristics in whiskers of the pseudo-one-dimensional titanium trisulfide TiS3," Nature Communications, Nature, vol. 7(1), pages 1-7, December.
    2. Jie Wang & Victor Malgras & Yoshiyuki Sugahara & Yusuke Yamauchi, 2021. "Electrochemical energy storage performance of 2D nanoarchitectured hybrid materials," Nature Communications, Nature, vol. 12(1), pages 1-4, December.
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    Cited by:

    1. Chengjian He & Chuan Xu & Chen Chen & Jinmeng Tong & Tianya Zhou & Su Sun & Zhibo Liu & Hui-Ming Cheng & Wencai Ren, 2024. "Unusually high thermal conductivity in suspended monolayer MoSi2N4," Nature Communications, Nature, vol. 15(1), pages 1-11, December.
    2. Yue Hu & Jiaxuan Xu & Xiulin Ruan & Hua Bao, 2024. "Defect scattering can lead to enhanced phonon transport at nanoscale," Nature Communications, Nature, vol. 15(1), pages 1-10, December.

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