期刊
NANO LETTERS
卷 23, 期 22, 页码 10103-10109出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.nanolett.3c01761
关键词
nanotubes; transition metal dichalcogenides; WS2 nanotubes; MoS2 nanotubes; heteronanotubes; van der Waals heterostructures; transition metal dichalcogenide nanotubes; transition metaldichalcogenide nanotubes; inorganic nanotubes
TMDC nanotubes are materials with unique physical properties, and controlling their structures is crucial for their scientific research and applications. This study successfully synthesized heterostructures of TMDC nanotubes and demonstrated a technique for controlling their features such as diameter, layer number, and crystallinity.
Transition metal dichalcogenide (TMDC) nanotubes exhibit unique physical properties due to their nanotube structures. The development of techniques for synthesizing TMDC nanotubes with controlled structures is very important for their science and applications. However, structural control efforts have been made only for the homostructures of TMDC nanotubes and not for their heterostructures that provide an important platform for their two-dimensional counterparts. In this study, we synthesized heterostructures of TMDC nanotubes, MoS2/WS2 heteronanotubes, and demonstrated a technique for controlling features of their structures, such as diameters, layer numbers, and crystallinity. The diameter of the heteronanotubes could be tuned with inner nanotube templates and was reduced by using small-diameter WS2 nanotubes. The layer number and crystallinity of the MoS2 outer wall could be controlled by controlling their precursors and synthesis temperatures, resulting in the formation of high-crystallinity TMDC heteronanotubes with specific chirality. This study can expand the research of van der Waals heterostructures.
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