Unexpected doping effects on phonon transport in quasi-one-dimensional van der Waals crystal TiS3 nanoribbons
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 fro...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2023-09-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-023-41425-0 |
| _version_ | 1797557949633134592 |
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| author | Chenhan Liu Chao Wu Xian Yi Tan Yi Tao Yin Zhang Deyu Li Juekuan Yang Qingyu Yan Yunfei Chen |
| author_facet | Chenhan Liu Chao Wu Xian Yi Tan Yi Tao Yin Zhang Deyu Li Juekuan Yang Qingyu Yan Yunfei Chen |
| author_sort | Chenhan Liu |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-03-10T17:24:28Z |
| format | Article |
| id | doaj.art-814d8a76c9d941d8908a3b444d69d443 |
| institution | Directory Open Access Journal |
| issn | 2041-1723 |
| language | English |
| last_indexed | 2024-03-10T17:24:28Z |
| publishDate | 2023-09-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj.art-814d8a76c9d941d8908a3b444d69d4432023-11-20T10:14:51ZengNature PortfolioNature Communications2041-17232023-09-0114111010.1038/s41467-023-41425-0Unexpected doping effects on phonon transport in quasi-one-dimensional van der Waals crystal TiS3 nanoribbonsChenhan Liu0Chao Wu1Xian Yi Tan2Yi Tao3Yin Zhang4Deyu Li5Juekuan Yang6Qingyu Yan7Yunfei Chen8Jiangsu Key Laboratory for Design and Manufacture of Micro-Nano Biomedical Instruments, School of Mechanical Engineering, Southeast UniversityJiangsu Key Laboratory for Design and Manufacture of Micro-Nano Biomedical Instruments, School of Mechanical Engineering, Southeast UniversitySchool of Materials Science and Engineering, Nanyang Technological UniversityJiangsu Key Laboratory for Design and Manufacture of Micro-Nano Biomedical Instruments, School of Mechanical Engineering, Southeast UniversityJiangsu Key Laboratory for Design and Manufacture of Micro-Nano Biomedical Instruments, School of Mechanical Engineering, Southeast UniversityDepartment of Mechanical Engineering, Vanderbilt UniversityJiangsu Key Laboratory for Design and Manufacture of Micro-Nano Biomedical Instruments, School of Mechanical Engineering, Southeast UniversitySchool of Materials Science and Engineering, Nanyang Technological UniversityJiangsu Key Laboratory for Design and Manufacture of Micro-Nano Biomedical Instruments, School of Mechanical Engineering, Southeast UniversityAbstract 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.https://doi.org/10.1038/s41467-023-41425-0 |
| spellingShingle | Chenhan Liu Chao Wu Xian Yi Tan Yi Tao Yin Zhang Deyu Li Juekuan Yang Qingyu Yan Yunfei Chen Unexpected doping effects on phonon transport in quasi-one-dimensional van der Waals crystal TiS3 nanoribbons Nature Communications |
| title | Unexpected doping effects on phonon transport in quasi-one-dimensional van der Waals crystal TiS3 nanoribbons |
| title_full | Unexpected doping effects on phonon transport in quasi-one-dimensional van der Waals crystal TiS3 nanoribbons |
| title_fullStr | Unexpected doping effects on phonon transport in quasi-one-dimensional van der Waals crystal TiS3 nanoribbons |
| title_full_unstemmed | Unexpected doping effects on phonon transport in quasi-one-dimensional van der Waals crystal TiS3 nanoribbons |
| title_short | Unexpected doping effects on phonon transport in quasi-one-dimensional van der Waals crystal TiS3 nanoribbons |
| title_sort | unexpected doping effects on phonon transport in quasi one dimensional van der waals crystal tis3 nanoribbons |
| url | https://doi.org/10.1038/s41467-023-41425-0 |
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