3D-nanostructured MoS2 nanoscroll with highly active sites for improving NO2 gas detection

Park, Hoyeon; Park, Jaeseo; Kang, Sang‐Woo; Jeong, Soo‐Hwan

doi:10.1016/j.matlet.2023.134733

Cited by 2 publications

(2 citation statements)

References 24 publications

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“…Meanwhile, the nanoscroll structure also provides tunable space to encapsulate functional nanomaterials for further enhanced performance. Therefore, the TMDCs-NS has been considered to present promising performance in the field of gas sensing [121].…”

Section: Gas Sensormentioning

confidence: 99%

Transition Metal Dichalcogenides Nanoscrolls: Preparation and Applications

Yu,

Wang,

et al. 2023

Nanomaterials

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Two-dimensional (2D) transition metal dichalcogenides (TMDCs) nanosheets have shown extensive applications due to their excellent physical and chemical properties. However, the low light absorption efficiency limits their application in optoelectronics. By rolling up 2D TMDCs nanosheets, the one-dimensional (1D) TMDCs nanoscrolls are formed with spiral tubular structure, tunable interlayer spacing, and opening ends. Due to the increased thickness of the scroll structure, the light absorption is enhanced. Meanwhile, the rapid electron transportation is confined along the 1D structure. Therefore, the TMDCs nanoscrolls show improved optoelectronic performance compared to 2D nanosheets. In addition, the high specific surface area and active edge site from the bending strain of the basal plane make them promising materials for catalytic reaction. Thus, the TMDCs nanoscrolls have attracted intensive attention in recent years. In this review, the structure of TMDCs nanoscrolls is first demonstrated and followed by various preparation methods of the TMDCs nanoscrolls. Afterwards, the applications of TMDCs nanoscrolls in the fields of photodetection, hydrogen evolution reaction, and gas sensing are discussed.

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Section: Gas Sensormentioning

confidence: 99%

Transition Metal Dichalcogenides Nanoscrolls: Preparation and Applications

Yu,

Wang,

et al. 2023

Nanomaterials

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“…In recent years, 2D transition metal dichalcogenides (TMDCs) have gained significant attention for their use in nanoelectronics, optoelectronics, biosensing and other applications, due to their excellent optical, electrical, and mechanical properties [1][2][3][4]. However, a challenge in device fabrication involving these 2D materials is the difficulty in removing photoresists or electron beam lithography resists.…”

Section: Introductionmentioning

confidence: 99%

Machinability of MoS2 after Oxygen Plasma Treatment under Mechanical Scanning Probe Lithography

He,

Su,

Hai

2024

Crystals

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The surface of molybdenum disulfide (MoS2) underwent oxygen plasma treatment to enhance its machinability and mitigate the tearing effects commonly associated with mechanical forces on 2D materials. This treatment led to the oxidation of the atoms on the top 1–3 layers of MoS2, resulting in the formation of MoO3 on the surface. During mechanical scanning probe lithography (m-SPL), only the surface oxide layer was uniformly removed, with material accumulation occurring predominantly on one side of the machined area. The resolution of the machining process was significantly enhanced via dynamic lithography while maintaining atomic-level smoothness in the machined area. Importantly, these techniques only removed the surface oxide layer, preserving the integrity of the underlying MoS2 surface, which was pivotal in avoiding damage to the original material structure. This study provided valuable insights and practical guidance for the nanofabrication of transition metal dichalcogenides (TMDCs) nanodevices, demonstrating a method to finely tune the machining of these materials.

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3D-nanostructured MoS2 nanoscroll with highly active sites for improving NO2 gas detection

Cited by 2 publications

References 24 publications

Transition Metal Dichalcogenides Nanoscrolls: Preparation and Applications

Transition Metal Dichalcogenides Nanoscrolls: Preparation and Applications

Machinability of MoS2 after Oxygen Plasma Treatment under Mechanical Scanning Probe Lithography

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