Growth of 2D MoP single crystals on liquid metals by chemical vapor deposition

Cao, Fuyang; Zheng, Shuting; Liang, Jingjing; Li, Zhi; Wei, Bin; Ding, Yiran; Wang, Zhongchang; Zeng, Mengqi; Xu, Nan; Fu, Lei

doi:10.1007/s40843-020-1521-0

Cited by 17 publications

(20 citation statements)

References 37 publications

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“…The relationship between the excitation power and SHG intensity is linearly fitted in a logarithmic coordinate system, and the fitting slope value is approximately equal to 2.0, which is the same as the theoretical value (Figure 4C). This indicates that the intensity of the second harmonic is proportional to the square of the intensity of the laser beam, which conforms to the principle of nonlinear optics (Cao et al, 2020;Shi et al, 2017;Wang et al, 2021). Figure 4D displays the changed trend of the SHG intensity of Te nanoflakes as the excitation wavelength increases from 760 to 980 nm, and the strongest intensity is at 800 nm.…”

Section: Nonlinear Optical Properties Of the As-synthesized 2d Te Nanoflakessupporting

confidence: 66%

“…SHG is a nonlinear optical process, in which two photons with the same frequency interact with nonlinear materials to produce one double frequency photon (Cao et al, 2020;Shi et al, 2017) In Figure 4A, there is a peak at 400 nm, which is the frequency doubled signal peak of the excitation wavelength. Besides, the signal intensity becomes stronger as the excitation power increases.…”

Section: Nonlinear Optical Properties Of the As-synthesized 2d Te Nanoflakesmentioning

confidence: 99%

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Controllable synthesis of high-quality two-dimensional tellurium by a facile chemical vapor transport strategy

et al. 2022

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Section: Nonlinear Optical Properties Of the As-synthesized 2d Te Nanoflakessupporting

confidence: 66%

Section: Nonlinear Optical Properties Of the As-synthesized 2d Te Nanoflakesmentioning

confidence: 99%

Controllable synthesis of high-quality two-dimensional tellurium by a facile chemical vapor transport strategy

et al. 2022

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“…Besides, liquid metal reaction systems can also be employed to prepare 2D transition metal phosphides (TMPs) with excellent properties. For instance, because of the high surface energy between liquid Ga and phosphorus source, our group synthesized high-quality ultrathin molybdenum phosphide (MoP) single crystals on liquid Ga for the first time, exhibiting good SHG performance . Moreover, our group successfully synthesized high-quality 2D manganese phosphide (MnP) single crystals on liquid Sn which exhibit their intrinsic ferromagnetism above room temperature .…”

Section: Liquid Metal Reaction System For Advanced 2d Materials Manuf...mentioning

confidence: 99%

A Liquid Metal Reaction System for Advanced Material Manufacturing

Zeng

Zhu

et al. 2021

Acc. Mater. Res.

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Conspectus Liquid metal exhibits the unique advantages of both the liquid and metal, including excellent deformability, high thermal conductivity, and electrical conductivity. The exploration of liquid metal is a new opportunity and revolution for the application of metal materials, including the flexible devices, catalysis, microfluidic, and drug delivery. In addition to the above applications, the characteristics of excellent inclusive ability with the majority of the elements and abundant vacancies in the bulk make it a new type of reaction medium different from traditional aqueous and organic solutions, exhibiting great potential in the precise construction of materials. To date, the research of using liquid metal as a reaction system to synthesize materials is still in its infancy. When acting as a reaction system, the vacancies inside and the smooth layering surfaces without grain boundaries allow liquid metals to encapsulate heterogeneous atoms, confine the precursors in atomically thick layers and realize the self-limiting growth of 2D material. Besides, the good rheological property makes it possible to construct 2D arrays on its surface. Except for the properties mentioned above, as a kind of metal, its excellent electrical conductivity and ductility provide a new idea for the preparation of composite materials in the energy field. Indeed, liquid metals provide attractive prospects in manufacturing advanced materials including 2D materials and functional composite materials. Thus, this Account aims to focus on the controllable fabrication of 2D materials and functional composite materials by liquid metals. Based on the characteristics of the surface layering and solidification and of excellent fluidity, the self-limited growth and ordered arrangement of 2D materials on liquid metal surfaces can be achieved, which enriches the material structures and leads to new properties. By constructing an in situ synthesis and observation system, the growth and assembly behavior of 2D materials on the liquid metal can be observed directly. Combining the electrical property, deformability, ductility, and high inclusive ability with other materials, the liquid metal reaction system can also realize the preparation of new functional composite materials toward various applications, such as the energy field. Except for the 2D materials and functional composite materials mentioned here, liquid metals also provide more possibilities for fabricating other promising materials, like wafer-scale semiconductors, magic-angle graphene, flexible functional materials, biomedical materials, and so on. The research concerning the manufacturing of advanced materials on liquid metals is still in its infancy. We believe that the development of related technologies offering in-depth investigation and theoretical understanding on liquid metals will lay a solid foundation for the basic research and practical application of more advanced materials.

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“…Ultrathin two-dimensional (2D) materials are a promising class of nanomaterials with a typical atomic thickness of less than 5 nm and a lateral size greater than 100 nm, or up to several micrometers or even wafer-scale, which are considered one of the best candidates for extending Moore's law. 1,2 Since the successful exfoliation of graphene in 2004, 3 ultrathin 2D materials such as graphene, 4–6 hexagonal boron nitride (h-BN), 7,8 transition metal dichalcogenides (TMDs), 9–12 III–V group semiconductors, 13–15 black phosphorus, 16 MXenes, 17–20 as well as some materials like layered double hydroxides (LDH), 21,22 metal oxides, 23–25 transition metal phosphides (TMPs) 26,27 and elemental materials 28–31 have attracted tremendous interest. Ultrathin 2D materials are generally divided into layered materials and non-layered materials.…”

Section: Introductionmentioning

confidence: 99%