| Autor: |
Md. Ashiqur Rahman, Yohei Yomogida, Abdul Ahad, Kan Ueji, Mai Nagano, Akane Ihara, Hiroyuki Nishidome, Mikito Omoto, Shigeki Saito, Yasumitsu Miyata, Yanlin Gao, Susumu Okada, Kazuhiro Yanagi |
| Jazyk: |
angličtina |
| Rok vydání: |
2023 |
| Předmět: |
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| Zdroj: |
Scientific Reports, Vol 13, Iss 1, Pp 1-7 (2023) |
| Druh dokumentu: |
article |
| ISSN: |
2045-2322 |
| DOI: |
10.1038/s41598-023-44072-z |
| Popis: |
Abstract Tungsten disulfide (WS2) nanotubes exhibit various unique properties depending on their structures, such as their diameter and wall number. The development of techniques to prepare WS2 nanotubes with the desired structure is crucial for understanding their basic properties. Notably, the synthesis and characterization of multi-walled WS2 nanotubes with small diameters are challenging. This study reports the synthesis and characterization of small-diameter WS2 nanotubes with an average inner diameter of 6 nm. The optical absorption and photoluminescence (PL) spectra of the as-prepared nanotubes indicate that a decrease in the nanotube diameter induces a red-shift in the PL, suggesting that the band gap narrowed due to a curvature effect, as suggested by theoretical calculations. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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