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| Main Authors: | , , , , , , , , , , , , , , , , , |
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| Format: | Preprint |
| Published: |
2024
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2407.09725 |
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| _version_ | 1866929668489216000 |
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| author | Ma, Zongpeng Solís-Fernández, Pablo Hirata, Kaito Lin, Yung-Chang Shinokita, Keisuke Maruyama, Mina Honda, Kota Kato, Tatsuki Uchida, Aika Ogura, Hiroto Otsuka, Tomohiro Hara, Masahiro Matsuda, Kazunari Suenaga, Kazu Okada, Susumu Kato, Toshiaki Takahashi, Yasufumi Ago, Hiroki |
| author_facet | Ma, Zongpeng Solís-Fernández, Pablo Hirata, Kaito Lin, Yung-Chang Shinokita, Keisuke Maruyama, Mina Honda, Kota Kato, Tatsuki Uchida, Aika Ogura, Hiroto Otsuka, Tomohiro Hara, Masahiro Matsuda, Kazunari Suenaga, Kazu Okada, Susumu Kato, Toshiaki Takahashi, Yasufumi Ago, Hiroki |
| contents | Transition metal dichalcogenides (TMDs) exhibit unique properties and potential applications when reduced to one-dimensional (1D) nanoribbons (NRs), owing to quantum confinement and high edge densities. However, effective growth methods for self-aligned TMD NRs are still lacking. We demonstrate a versatile approach for lattice-guided growth of dense, aligned MoS2 NR arrays via chemical vapor deposition (CVD) on anisotropic sapphire substrates, without tailored surface steps. This method enables the synthesis of NRs with widths below 10 nm and longitudinal axis parallel to the zigzag direction, being also extensible to the growth of WS2 NRs and MoS2-WS2 hetero-nanoribbons. Growth is influenced by both substrate and CVD temperature, indicating the role of anisotropic precursor diffusion and substrate interaction. The 1D nature of the NRs was asserted by the observation of Coulomb blockade at low temperature. Pronounced catalytic activity was observed at the edges of the NRs, indicating their promise for efficient catalysis. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2407_09725 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Lattice-guided growth of dense arrays of aligned transition metal dichalcogenide nanoribbons with high catalytic reactivity Ma, Zongpeng Solís-Fernández, Pablo Hirata, Kaito Lin, Yung-Chang Shinokita, Keisuke Maruyama, Mina Honda, Kota Kato, Tatsuki Uchida, Aika Ogura, Hiroto Otsuka, Tomohiro Hara, Masahiro Matsuda, Kazunari Suenaga, Kazu Okada, Susumu Kato, Toshiaki Takahashi, Yasufumi Ago, Hiroki Mesoscale and Nanoscale Physics Materials Science Transition metal dichalcogenides (TMDs) exhibit unique properties and potential applications when reduced to one-dimensional (1D) nanoribbons (NRs), owing to quantum confinement and high edge densities. However, effective growth methods for self-aligned TMD NRs are still lacking. We demonstrate a versatile approach for lattice-guided growth of dense, aligned MoS2 NR arrays via chemical vapor deposition (CVD) on anisotropic sapphire substrates, without tailored surface steps. This method enables the synthesis of NRs with widths below 10 nm and longitudinal axis parallel to the zigzag direction, being also extensible to the growth of WS2 NRs and MoS2-WS2 hetero-nanoribbons. Growth is influenced by both substrate and CVD temperature, indicating the role of anisotropic precursor diffusion and substrate interaction. The 1D nature of the NRs was asserted by the observation of Coulomb blockade at low temperature. Pronounced catalytic activity was observed at the edges of the NRs, indicating their promise for efficient catalysis. |
| title | Lattice-guided growth of dense arrays of aligned transition metal dichalcogenide nanoribbons with high catalytic reactivity |
| topic | Mesoscale and Nanoscale Physics Materials Science |
| url | https://arxiv.org/abs/2407.09725 |